/src/cpython/Python/getargs.c
Line | Count | Source (jump to first uncovered line) |
1 | | |
2 | | /* New getargs implementation */ |
3 | | |
4 | | #define PY_CXX_CONST const |
5 | | #include "Python.h" |
6 | | #include "pycore_abstract.h" // _PyNumber_Index() |
7 | | #include "pycore_dict.h" // _PyDict_HasOnlyStringKeys() |
8 | | #include "pycore_modsupport.h" // export _PyArg_NoKeywords() |
9 | | #include "pycore_pylifecycle.h" // _PyArg_Fini |
10 | | #include "pycore_pystate.h" // _Py_IsMainInterpreter() |
11 | | #include "pycore_tuple.h" // _PyTuple_ITEMS() |
12 | | #include "pycore_pyerrors.h" // _Py_CalculateSuggestions() |
13 | | #include "pycore_unicodeobject.h" // _PyUnicode_InternImmortal |
14 | | |
15 | | /* Export Stable ABIs (abi only) */ |
16 | | PyAPI_FUNC(int) _PyArg_Parse_SizeT(PyObject *, const char *, ...); |
17 | | PyAPI_FUNC(int) _PyArg_ParseTuple_SizeT(PyObject *, const char *, ...); |
18 | | PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywords_SizeT(PyObject *, PyObject *, |
19 | | const char *, const char * const *, ...); |
20 | | PyAPI_FUNC(int) _PyArg_VaParse_SizeT(PyObject *, const char *, va_list); |
21 | | PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *, PyObject *, |
22 | | const char *, const char * const *, va_list); |
23 | | |
24 | 2.74M | #define FLAG_COMPAT 1 |
25 | | |
26 | | typedef int (*destr_t)(PyObject *, void *); |
27 | | |
28 | | |
29 | | /* Keep track of "objects" that have been allocated or initialized and |
30 | | which will need to be deallocated or cleaned up somehow if overall |
31 | | parsing fails. |
32 | | */ |
33 | | typedef struct { |
34 | | void *item; |
35 | | destr_t destructor; |
36 | | } freelistentry_t; |
37 | | |
38 | | typedef struct { |
39 | | freelistentry_t *entries; |
40 | | int first_available; |
41 | | int entries_malloced; |
42 | | } freelist_t; |
43 | | |
44 | 946k | #define STATIC_FREELIST_ENTRIES 8 |
45 | | |
46 | | /* Forward */ |
47 | | static int vgetargs1_impl(PyObject *args, PyObject *const *stack, Py_ssize_t nargs, |
48 | | const char *format, va_list *p_va, int flags); |
49 | | static int vgetargs1(PyObject *, const char *, va_list *, int); |
50 | | static void seterror(Py_ssize_t, const char *, int *, const char *, const char *); |
51 | | static const char *convertitem(PyObject *, const char **, va_list *, int, int *, |
52 | | char *, size_t, freelist_t *); |
53 | | static const char *converttuple(PyObject *, const char **, va_list *, int, |
54 | | int *, char *, size_t, freelist_t *); |
55 | | static const char *convertsimple(PyObject *, const char **, va_list *, int, |
56 | | char *, size_t, freelist_t *); |
57 | | static Py_ssize_t convertbuffer(PyObject *, const void **p, const char **); |
58 | | static int getbuffer(PyObject *, Py_buffer *, const char**); |
59 | | |
60 | | static int vgetargskeywords(PyObject *, PyObject *, |
61 | | const char *, const char * const *, va_list *, int); |
62 | | static int vgetargskeywordsfast(PyObject *, PyObject *, |
63 | | struct _PyArg_Parser *, va_list *, int); |
64 | | static int vgetargskeywordsfast_impl(PyObject *const *args, Py_ssize_t nargs, |
65 | | PyObject *keywords, PyObject *kwnames, |
66 | | struct _PyArg_Parser *parser, |
67 | | va_list *p_va, int flags); |
68 | | static const char *skipitem(const char **, va_list *, int); |
69 | | |
70 | | int |
71 | | PyArg_Parse(PyObject *args, const char *format, ...) |
72 | 0 | { |
73 | 0 | int retval; |
74 | 0 | va_list va; |
75 | |
|
76 | 0 | va_start(va, format); |
77 | 0 | retval = vgetargs1(args, format, &va, FLAG_COMPAT); |
78 | 0 | va_end(va); |
79 | 0 | return retval; |
80 | 0 | } |
81 | | |
82 | | PyAPI_FUNC(int) |
83 | | _PyArg_Parse_SizeT(PyObject *args, const char *format, ...) |
84 | 0 | { |
85 | 0 | int retval; |
86 | 0 | va_list va; |
87 | |
|
88 | 0 | va_start(va, format); |
89 | 0 | retval = vgetargs1(args, format, &va, FLAG_COMPAT); |
90 | 0 | va_end(va); |
91 | 0 | return retval; |
92 | 0 | } |
93 | | |
94 | | |
95 | | int |
96 | | PyArg_ParseTuple(PyObject *args, const char *format, ...) |
97 | 914k | { |
98 | 914k | int retval; |
99 | 914k | va_list va; |
100 | | |
101 | 914k | va_start(va, format); |
102 | 914k | retval = vgetargs1(args, format, &va, 0); |
103 | 914k | va_end(va); |
104 | 914k | return retval; |
105 | 914k | } |
106 | | |
107 | | int |
108 | | _PyArg_ParseTuple_SizeT(PyObject *args, const char *format, ...) |
109 | 0 | { |
110 | 0 | int retval; |
111 | 0 | va_list va; |
112 | |
|
113 | 0 | va_start(va, format); |
114 | 0 | retval = vgetargs1(args, format, &va, 0); |
115 | 0 | va_end(va); |
116 | 0 | return retval; |
117 | 0 | } |
118 | | |
119 | | |
120 | | int |
121 | | _PyArg_ParseStack(PyObject *const *args, Py_ssize_t nargs, const char *format, ...) |
122 | 0 | { |
123 | 0 | int retval; |
124 | 0 | va_list va; |
125 | |
|
126 | 0 | va_start(va, format); |
127 | 0 | retval = vgetargs1_impl(NULL, args, nargs, format, &va, 0); |
128 | 0 | va_end(va); |
129 | 0 | return retval; |
130 | 0 | } |
131 | | |
132 | | int |
133 | | PyArg_VaParse(PyObject *args, const char *format, va_list va) |
134 | 0 | { |
135 | 0 | va_list lva; |
136 | 0 | int retval; |
137 | |
|
138 | 0 | va_copy(lva, va); |
139 | |
|
140 | 0 | retval = vgetargs1(args, format, &lva, 0); |
141 | 0 | va_end(lva); |
142 | 0 | return retval; |
143 | 0 | } |
144 | | |
145 | | int |
146 | | _PyArg_VaParse_SizeT(PyObject *args, const char *format, va_list va) |
147 | 0 | { |
148 | 0 | va_list lva; |
149 | 0 | int retval; |
150 | |
|
151 | 0 | va_copy(lva, va); |
152 | |
|
153 | 0 | retval = vgetargs1(args, format, &lva, 0); |
154 | 0 | va_end(lva); |
155 | 0 | return retval; |
156 | 0 | } |
157 | | |
158 | | |
159 | | /* Handle cleanup of allocated memory in case of exception */ |
160 | | |
161 | | static int |
162 | | cleanup_ptr(PyObject *self, void *ptr) |
163 | 0 | { |
164 | 0 | void **pptr = (void **)ptr; |
165 | 0 | PyMem_Free(*pptr); |
166 | 0 | *pptr = NULL; |
167 | 0 | return 0; |
168 | 0 | } |
169 | | |
170 | | static int |
171 | | cleanup_buffer(PyObject *self, void *ptr) |
172 | 0 | { |
173 | 0 | Py_buffer *buf = (Py_buffer *)ptr; |
174 | 0 | if (buf) { |
175 | 0 | PyBuffer_Release(buf); |
176 | 0 | } |
177 | 0 | return 0; |
178 | 0 | } |
179 | | |
180 | | static int |
181 | | addcleanup(void *ptr, freelist_t *freelist, destr_t destructor) |
182 | 0 | { |
183 | 0 | int index; |
184 | |
|
185 | 0 | index = freelist->first_available; |
186 | 0 | freelist->first_available += 1; |
187 | |
|
188 | 0 | freelist->entries[index].item = ptr; |
189 | 0 | freelist->entries[index].destructor = destructor; |
190 | |
|
191 | 0 | return 0; |
192 | 0 | } |
193 | | |
194 | | static int |
195 | | cleanreturn(int retval, freelist_t *freelist) |
196 | 946k | { |
197 | 946k | int index; |
198 | | |
199 | 946k | if (retval == 0) { |
200 | | /* A failure occurred, therefore execute all of the cleanup |
201 | | functions. |
202 | | */ |
203 | 107 | for (index = 0; index < freelist->first_available; ++index) { |
204 | 0 | freelist->entries[index].destructor(NULL, |
205 | 0 | freelist->entries[index].item); |
206 | 0 | } |
207 | 107 | } |
208 | 946k | if (freelist->entries_malloced) |
209 | 6.79k | PyMem_Free(freelist->entries); |
210 | 946k | return retval; |
211 | 946k | } |
212 | | |
213 | | |
214 | | static int |
215 | | vgetargs1_impl(PyObject *compat_args, PyObject *const *stack, Py_ssize_t nargs, const char *format, |
216 | | va_list *p_va, int flags) |
217 | 914k | { |
218 | 914k | char msgbuf[256]; |
219 | 914k | int levels[32]; |
220 | 914k | const char *fname = NULL; |
221 | 914k | const char *message = NULL; |
222 | 914k | int min = -1; |
223 | 914k | int max = 0; |
224 | 914k | int level = 0; |
225 | 914k | int endfmt = 0; |
226 | 914k | const char *formatsave = format; |
227 | 914k | Py_ssize_t i; |
228 | 914k | const char *msg; |
229 | 914k | int compat = flags & FLAG_COMPAT; |
230 | 914k | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
231 | 914k | freelist_t freelist; |
232 | | |
233 | 914k | assert(nargs == 0 || stack != NULL); |
234 | | |
235 | 914k | freelist.entries = static_entries; |
236 | 914k | freelist.first_available = 0; |
237 | 914k | freelist.entries_malloced = 0; |
238 | | |
239 | 914k | flags = flags & ~FLAG_COMPAT; |
240 | | |
241 | 5.70M | while (endfmt == 0) { |
242 | 4.78M | int c = *format++; |
243 | 4.78M | switch (c) { |
244 | 0 | case '(': |
245 | 0 | if (level == 0) |
246 | 0 | max++; |
247 | 0 | level++; |
248 | 0 | if (level >= 30) |
249 | 0 | Py_FatalError("too many tuple nesting levels " |
250 | 0 | "in argument format string"); |
251 | 0 | break; |
252 | 0 | case ')': |
253 | 0 | if (level == 0) |
254 | 0 | Py_FatalError("excess ')' in getargs format"); |
255 | 0 | else |
256 | 0 | level--; |
257 | 0 | break; |
258 | 349k | case '\0': |
259 | 349k | endfmt = 1; |
260 | 349k | break; |
261 | 316k | case ':': |
262 | 316k | fname = format; |
263 | 316k | endfmt = 1; |
264 | 316k | break; |
265 | 249k | case ';': |
266 | 249k | message = format; |
267 | 249k | endfmt = 1; |
268 | 249k | break; |
269 | 16.2k | case '|': |
270 | 16.2k | if (level == 0) |
271 | 16.2k | min = max; |
272 | 16.2k | break; |
273 | 3.85M | default: |
274 | 3.85M | if (level == 0) { |
275 | 3.85M | if (Py_ISALPHA(c)) |
276 | 3.22M | if (c != 'e') /* skip encoded */ |
277 | 3.22M | max++; |
278 | 3.85M | } |
279 | 3.85M | break; |
280 | 4.78M | } |
281 | 4.78M | } |
282 | | |
283 | 914k | if (level != 0) |
284 | 0 | Py_FatalError(/* '(' */ "missing ')' in getargs format"); |
285 | | |
286 | 914k | if (min < 0) |
287 | 898k | min = max; |
288 | | |
289 | 914k | format = formatsave; |
290 | | |
291 | 914k | if (max > STATIC_FREELIST_ENTRIES) { |
292 | 0 | freelist.entries = PyMem_NEW(freelistentry_t, max); |
293 | 0 | if (freelist.entries == NULL) { |
294 | 0 | PyErr_NoMemory(); |
295 | 0 | return 0; |
296 | 0 | } |
297 | 0 | freelist.entries_malloced = 1; |
298 | 0 | } |
299 | | |
300 | 914k | if (compat) { |
301 | 0 | if (max == 0) { |
302 | 0 | if (compat_args == NULL) |
303 | 0 | return 1; |
304 | 0 | PyErr_Format(PyExc_TypeError, |
305 | 0 | "%.200s%s takes no arguments", |
306 | 0 | fname==NULL ? "function" : fname, |
307 | 0 | fname==NULL ? "" : "()"); |
308 | 0 | return cleanreturn(0, &freelist); |
309 | 0 | } |
310 | 0 | else if (min == 1 && max == 1) { |
311 | 0 | if (compat_args == NULL) { |
312 | 0 | PyErr_Format(PyExc_TypeError, |
313 | 0 | "%.200s%s takes at least one argument", |
314 | 0 | fname==NULL ? "function" : fname, |
315 | 0 | fname==NULL ? "" : "()"); |
316 | 0 | return cleanreturn(0, &freelist); |
317 | 0 | } |
318 | 0 | msg = convertitem(compat_args, &format, p_va, flags, levels, |
319 | 0 | msgbuf, sizeof(msgbuf), &freelist); |
320 | 0 | if (msg == NULL) |
321 | 0 | return cleanreturn(1, &freelist); |
322 | 0 | seterror(levels[0], msg, levels+1, fname, message); |
323 | 0 | return cleanreturn(0, &freelist); |
324 | 0 | } |
325 | 0 | else { |
326 | 0 | PyErr_SetString(PyExc_SystemError, |
327 | 0 | "old style getargs format uses new features"); |
328 | 0 | return cleanreturn(0, &freelist); |
329 | 0 | } |
330 | 0 | } |
331 | | |
332 | 914k | if (nargs < min || max < nargs) { |
333 | 0 | if (message == NULL) |
334 | 0 | PyErr_Format(PyExc_TypeError, |
335 | 0 | "%.150s%s takes %s %d argument%s (%zd given)", |
336 | 0 | fname==NULL ? "function" : fname, |
337 | 0 | fname==NULL ? "" : "()", |
338 | 0 | min==max ? "exactly" |
339 | 0 | : nargs < min ? "at least" : "at most", |
340 | 0 | nargs < min ? min : max, |
341 | 0 | (nargs < min ? min : max) == 1 ? "" : "s", |
342 | 0 | nargs); |
343 | 0 | else |
344 | 0 | PyErr_SetString(PyExc_TypeError, message); |
345 | 0 | return cleanreturn(0, &freelist); |
346 | 0 | } |
347 | | |
348 | 4.12M | for (i = 0; i < nargs; i++) { |
349 | 3.20M | if (*format == '|') |
350 | 14.5k | format++; |
351 | 3.20M | msg = convertitem(stack[i], &format, p_va, |
352 | 3.20M | flags, levels, msgbuf, |
353 | 3.20M | sizeof(msgbuf), &freelist); |
354 | 3.20M | if (msg) { |
355 | 107 | seterror(i+1, msg, levels, fname, message); |
356 | 107 | return cleanreturn(0, &freelist); |
357 | 107 | } |
358 | 3.20M | } |
359 | | |
360 | 914k | if (*format != '\0' && !Py_ISALPHA(*format) && |
361 | 914k | *format != '(' && |
362 | 914k | *format != '|' && *format != ':' && *format != ';') { |
363 | 0 | PyErr_Format(PyExc_SystemError, |
364 | 0 | "bad format string: %.200s", formatsave); |
365 | 0 | return cleanreturn(0, &freelist); |
366 | 0 | } |
367 | | |
368 | 914k | return cleanreturn(1, &freelist); |
369 | 914k | } |
370 | | |
371 | | static int |
372 | | vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags) |
373 | 914k | { |
374 | 914k | PyObject **stack; |
375 | 914k | Py_ssize_t nargs; |
376 | | |
377 | 914k | if (!(flags & FLAG_COMPAT)) { |
378 | 914k | assert(args != NULL); |
379 | | |
380 | 914k | if (!PyTuple_Check(args)) { |
381 | 0 | PyErr_SetString(PyExc_SystemError, |
382 | 0 | "new style getargs format but argument is not a tuple"); |
383 | 0 | return 0; |
384 | 0 | } |
385 | | |
386 | 914k | stack = _PyTuple_ITEMS(args); |
387 | 914k | nargs = PyTuple_GET_SIZE(args); |
388 | 914k | } |
389 | 0 | else { |
390 | 0 | stack = NULL; |
391 | 0 | nargs = 0; |
392 | 0 | } |
393 | | |
394 | 914k | return vgetargs1_impl(args, stack, nargs, format, p_va, flags); |
395 | 914k | } |
396 | | |
397 | | |
398 | | static void |
399 | | seterror(Py_ssize_t iarg, const char *msg, int *levels, const char *fname, |
400 | | const char *message) |
401 | 107 | { |
402 | 107 | char buf[512]; |
403 | 107 | int i; |
404 | 107 | char *p = buf; |
405 | | |
406 | 107 | if (PyErr_Occurred()) |
407 | 107 | return; |
408 | 0 | else if (message == NULL) { |
409 | 0 | if (fname != NULL) { |
410 | 0 | PyOS_snprintf(p, sizeof(buf), "%.200s() ", fname); |
411 | 0 | p += strlen(p); |
412 | 0 | } |
413 | 0 | if (iarg != 0) { |
414 | 0 | PyOS_snprintf(p, sizeof(buf) - (p - buf), |
415 | 0 | "argument %zd", iarg); |
416 | 0 | i = 0; |
417 | 0 | p += strlen(p); |
418 | 0 | while (i < 32 && levels[i] > 0 && (int)(p-buf) < 220) { |
419 | 0 | PyOS_snprintf(p, sizeof(buf) - (p - buf), |
420 | 0 | ", item %d", levels[i]-1); |
421 | 0 | p += strlen(p); |
422 | 0 | i++; |
423 | 0 | } |
424 | 0 | } |
425 | 0 | else { |
426 | 0 | PyOS_snprintf(p, sizeof(buf) - (p - buf), "argument"); |
427 | 0 | p += strlen(p); |
428 | 0 | } |
429 | 0 | PyOS_snprintf(p, sizeof(buf) - (p - buf), " %.256s", msg); |
430 | 0 | message = buf; |
431 | 0 | } |
432 | 0 | if (msg[0] == '(') { |
433 | 0 | PyErr_SetString(PyExc_SystemError, message); |
434 | 0 | } |
435 | 0 | else { |
436 | 0 | PyErr_SetString(PyExc_TypeError, message); |
437 | 0 | } |
438 | 0 | } |
439 | | |
440 | | |
441 | | /* Convert a tuple argument. |
442 | | On entry, *p_format points to the character _after_ the opening '('. |
443 | | On successful exit, *p_format points to the closing ')'. |
444 | | If successful: |
445 | | *p_format and *p_va are updated, |
446 | | *levels and *msgbuf are untouched, |
447 | | and NULL is returned. |
448 | | If the argument is invalid: |
449 | | *p_format is unchanged, |
450 | | *p_va is undefined, |
451 | | *levels is a 0-terminated list of item numbers, |
452 | | *msgbuf contains an error message, whose format is: |
453 | | "must be <typename1>, not <typename2>", where: |
454 | | <typename1> is the name of the expected type, and |
455 | | <typename2> is the name of the actual type, |
456 | | and msgbuf is returned. |
457 | | */ |
458 | | |
459 | | static const char * |
460 | | converttuple(PyObject *arg, const char **p_format, va_list *p_va, int flags, |
461 | | int *levels, char *msgbuf, size_t bufsize, |
462 | | freelist_t *freelist) |
463 | 0 | { |
464 | 0 | int level = 0; |
465 | 0 | int n = 0; |
466 | 0 | const char *format = *p_format; |
467 | 0 | int i; |
468 | 0 | Py_ssize_t len; |
469 | 0 | int istuple = PyTuple_Check(arg); |
470 | 0 | int mustbetuple = istuple; |
471 | |
|
472 | 0 | for (;;) { |
473 | 0 | int c = *format++; |
474 | 0 | if (c == '(') { |
475 | 0 | if (level == 0) |
476 | 0 | n++; |
477 | 0 | level++; |
478 | 0 | } |
479 | 0 | else if (c == ')') { |
480 | 0 | if (level == 0) |
481 | 0 | break; |
482 | 0 | level--; |
483 | 0 | } |
484 | 0 | else if (c == ':' || c == ';' || c == '\0') |
485 | 0 | break; |
486 | 0 | else { |
487 | 0 | if (level == 0 && Py_ISALPHA(c)) { |
488 | 0 | n++; |
489 | 0 | } |
490 | 0 | if (c == 'e' && (*format == 's' || *format == 't')) { |
491 | 0 | format++; |
492 | 0 | continue; |
493 | 0 | } |
494 | 0 | if (!mustbetuple) { |
495 | 0 | switch (c) { |
496 | 0 | case 'y': |
497 | 0 | case 's': |
498 | 0 | case 'z': |
499 | 0 | if (*format != '*') { |
500 | 0 | mustbetuple = 1; |
501 | 0 | } |
502 | 0 | break; |
503 | 0 | case 'S': |
504 | 0 | case 'Y': |
505 | 0 | case 'U': |
506 | 0 | mustbetuple = 1; |
507 | 0 | break; |
508 | 0 | case 'O': |
509 | 0 | if (*format != '&') { |
510 | 0 | mustbetuple = 1; |
511 | 0 | } |
512 | 0 | break; |
513 | 0 | } |
514 | 0 | } |
515 | 0 | } |
516 | 0 | } |
517 | | |
518 | 0 | if (istuple) { |
519 | | /* fallthrough */ |
520 | 0 | } |
521 | 0 | else if (!PySequence_Check(arg) || |
522 | 0 | PyUnicode_Check(arg) || PyBytes_Check(arg) || PyByteArray_Check(arg)) |
523 | 0 | { |
524 | 0 | levels[0] = 0; |
525 | 0 | PyOS_snprintf(msgbuf, bufsize, |
526 | 0 | "must be %d-item tuple, not %.50s", |
527 | 0 | n, |
528 | 0 | arg == Py_None ? "None" : Py_TYPE(arg)->tp_name); |
529 | 0 | return msgbuf; |
530 | 0 | } |
531 | 0 | else { |
532 | 0 | if (mustbetuple) { |
533 | 0 | if (PyErr_WarnFormat(PyExc_DeprecationWarning, 0, |
534 | 0 | "argument must be %d-item tuple, not %T", n, arg)) |
535 | 0 | { |
536 | 0 | return msgbuf; |
537 | 0 | } |
538 | 0 | } |
539 | 0 | len = PySequence_Size(arg); |
540 | 0 | if (len != n) { |
541 | 0 | levels[0] = 0; |
542 | 0 | PyOS_snprintf(msgbuf, bufsize, |
543 | 0 | "must be %s of length %d, not %zd", |
544 | 0 | mustbetuple ? "tuple" : "sequence", n, len); |
545 | 0 | return msgbuf; |
546 | 0 | } |
547 | 0 | arg = PySequence_Tuple(arg); |
548 | 0 | if (arg == NULL) { |
549 | 0 | return msgbuf; |
550 | 0 | } |
551 | 0 | } |
552 | | |
553 | 0 | len = PyTuple_GET_SIZE(arg); |
554 | 0 | if (len != n) { |
555 | 0 | levels[0] = 0; |
556 | 0 | PyOS_snprintf(msgbuf, bufsize, |
557 | 0 | "must be tuple of length %d, not %zd", |
558 | 0 | n, len); |
559 | 0 | if (!istuple) { |
560 | 0 | Py_DECREF(arg); |
561 | 0 | } |
562 | 0 | return msgbuf; |
563 | 0 | } |
564 | | |
565 | 0 | format = *p_format; |
566 | 0 | for (i = 0; i < n; i++) { |
567 | 0 | const char *msg; |
568 | 0 | PyObject *item = PyTuple_GET_ITEM(arg, i); |
569 | 0 | msg = convertitem(item, &format, p_va, flags, levels+1, |
570 | 0 | msgbuf, bufsize, freelist); |
571 | 0 | if (msg != NULL) { |
572 | 0 | levels[0] = i+1; |
573 | 0 | if (!istuple) { |
574 | 0 | Py_DECREF(arg); |
575 | 0 | } |
576 | 0 | return msg; |
577 | 0 | } |
578 | 0 | } |
579 | | |
580 | 0 | *p_format = format; |
581 | 0 | if (!istuple) { |
582 | 0 | Py_DECREF(arg); |
583 | 0 | } |
584 | 0 | return NULL; |
585 | 0 | } |
586 | | |
587 | | |
588 | | /* Convert a single item. */ |
589 | | |
590 | | static const char * |
591 | | convertitem(PyObject *arg, const char **p_format, va_list *p_va, int flags, |
592 | | int *levels, char *msgbuf, size_t bufsize, freelist_t *freelist) |
593 | 3.28M | { |
594 | 3.28M | const char *msg; |
595 | 3.28M | const char *format = *p_format; |
596 | | |
597 | 3.28M | if (*format == '(' /* ')' */) { |
598 | 0 | format++; |
599 | 0 | msg = converttuple(arg, &format, p_va, flags, levels, msgbuf, |
600 | 0 | bufsize, freelist); |
601 | 0 | if (msg == NULL) |
602 | 0 | format++; |
603 | 0 | } |
604 | 3.28M | else { |
605 | 3.28M | msg = convertsimple(arg, &format, p_va, flags, |
606 | 3.28M | msgbuf, bufsize, freelist); |
607 | 3.28M | if (msg != NULL) |
608 | 107 | levels[0] = 0; |
609 | 3.28M | } |
610 | 3.28M | if (msg == NULL) |
611 | 3.28M | *p_format = format; |
612 | 3.28M | return msg; |
613 | 3.28M | } |
614 | | |
615 | | |
616 | | |
617 | | /* Format an error message generated by convertsimple(). |
618 | | displayname must be UTF-8 encoded. |
619 | | */ |
620 | | |
621 | | void |
622 | | _PyArg_BadArgument(const char *fname, const char *displayname, |
623 | | const char *expected, PyObject *arg) |
624 | 0 | { |
625 | 0 | PyErr_Format(PyExc_TypeError, |
626 | 0 | "%.200s() %.200s must be %.50s, not %.50s", |
627 | 0 | fname, displayname, expected, |
628 | 0 | arg == Py_None ? "None" : Py_TYPE(arg)->tp_name); |
629 | 0 | } |
630 | | |
631 | | static const char * |
632 | | converterr(const char *expected, PyObject *arg, char *msgbuf, size_t bufsize) |
633 | 0 | { |
634 | 0 | assert(expected != NULL); |
635 | 0 | assert(arg != NULL); |
636 | 0 | if (expected[0] == '(') { |
637 | 0 | PyOS_snprintf(msgbuf, bufsize, |
638 | 0 | "%.100s", expected); |
639 | 0 | } |
640 | 0 | else { |
641 | 0 | PyOS_snprintf(msgbuf, bufsize, |
642 | 0 | "must be %.50s, not %.50s", expected, |
643 | 0 | arg == Py_None ? "None" : Py_TYPE(arg)->tp_name); |
644 | 0 | } |
645 | 0 | return msgbuf; |
646 | 0 | } |
647 | | |
648 | | static const char * |
649 | | convertcharerr(const char *expected, const char *what, Py_ssize_t size, |
650 | | char *msgbuf, size_t bufsize) |
651 | 0 | { |
652 | 0 | assert(expected != NULL); |
653 | 0 | PyOS_snprintf(msgbuf, bufsize, |
654 | 0 | "must be %.50s, not %.50s of length %zd", |
655 | 0 | expected, what, size); |
656 | 0 | return msgbuf; |
657 | 0 | } |
658 | | |
659 | 0 | #define CONV_UNICODE "(unicode conversion error)" |
660 | | |
661 | | /* Convert a non-tuple argument. Return NULL if conversion went OK, |
662 | | or a string with a message describing the failure. The message is |
663 | | formatted as "must be <desired type>, not <actual type>". |
664 | | When failing, an exception may or may not have been raised. |
665 | | Don't call if a tuple is expected. |
666 | | |
667 | | When you add new format codes, please don't forget poor skipitem() below. |
668 | | */ |
669 | | |
670 | | static const char * |
671 | | convertsimple(PyObject *arg, const char **p_format, va_list *p_va, int flags, |
672 | | char *msgbuf, size_t bufsize, freelist_t *freelist) |
673 | 3.28M | { |
674 | 3.28M | #define RETURN_ERR_OCCURRED return msgbuf |
675 | | |
676 | 3.28M | const char *format = *p_format; |
677 | 3.28M | char c = *format++; |
678 | 3.28M | const char *sarg; |
679 | | |
680 | 3.28M | switch (c) { |
681 | | |
682 | 0 | case 'b': { /* unsigned byte -- very short int */ |
683 | 0 | unsigned char *p = va_arg(*p_va, unsigned char *); |
684 | 0 | long ival = PyLong_AsLong(arg); |
685 | 0 | if (ival == -1 && PyErr_Occurred()) |
686 | 0 | RETURN_ERR_OCCURRED; |
687 | 0 | else if (ival < 0) { |
688 | 0 | PyErr_SetString(PyExc_OverflowError, |
689 | 0 | "unsigned byte integer is less than minimum"); |
690 | 0 | RETURN_ERR_OCCURRED; |
691 | 0 | } |
692 | 0 | else if (ival > UCHAR_MAX) { |
693 | 0 | PyErr_SetString(PyExc_OverflowError, |
694 | 0 | "unsigned byte integer is greater than maximum"); |
695 | 0 | RETURN_ERR_OCCURRED; |
696 | 0 | } |
697 | 0 | else |
698 | 0 | *p = (unsigned char) ival; |
699 | 0 | break; |
700 | 0 | } |
701 | | |
702 | 0 | case 'B': {/* byte sized bitfield - both signed and unsigned |
703 | | values allowed */ |
704 | 0 | unsigned char *p = va_arg(*p_va, unsigned char *); |
705 | 0 | Py_ssize_t bytes = PyLong_AsNativeBytes(arg, p, sizeof(unsigned char), |
706 | 0 | Py_ASNATIVEBYTES_NATIVE_ENDIAN | |
707 | 0 | Py_ASNATIVEBYTES_ALLOW_INDEX | |
708 | 0 | Py_ASNATIVEBYTES_UNSIGNED_BUFFER); |
709 | 0 | if (bytes < 0) { |
710 | 0 | RETURN_ERR_OCCURRED; |
711 | 0 | } |
712 | 0 | if ((size_t)bytes > sizeof(unsigned char)) { |
713 | 0 | if (PyErr_WarnEx(PyExc_DeprecationWarning, |
714 | 0 | "integer value out of range", 1) < 0) |
715 | 0 | { |
716 | 0 | RETURN_ERR_OCCURRED; |
717 | 0 | } |
718 | 0 | } |
719 | 0 | break; |
720 | 0 | } |
721 | | |
722 | 0 | case 'h': {/* signed short int */ |
723 | 0 | short *p = va_arg(*p_va, short *); |
724 | 0 | long ival = PyLong_AsLong(arg); |
725 | 0 | if (ival == -1 && PyErr_Occurred()) |
726 | 0 | RETURN_ERR_OCCURRED; |
727 | 0 | else if (ival < SHRT_MIN) { |
728 | 0 | PyErr_SetString(PyExc_OverflowError, |
729 | 0 | "signed short integer is less than minimum"); |
730 | 0 | RETURN_ERR_OCCURRED; |
731 | 0 | } |
732 | 0 | else if (ival > SHRT_MAX) { |
733 | 0 | PyErr_SetString(PyExc_OverflowError, |
734 | 0 | "signed short integer is greater than maximum"); |
735 | 0 | RETURN_ERR_OCCURRED; |
736 | 0 | } |
737 | 0 | else |
738 | 0 | *p = (short) ival; |
739 | 0 | break; |
740 | 0 | } |
741 | | |
742 | 0 | case 'H': { /* short int sized bitfield, both signed and |
743 | | unsigned allowed */ |
744 | 0 | unsigned short *p = va_arg(*p_va, unsigned short *); |
745 | 0 | Py_ssize_t bytes = PyLong_AsNativeBytes(arg, p, sizeof(unsigned short), |
746 | 0 | Py_ASNATIVEBYTES_NATIVE_ENDIAN | |
747 | 0 | Py_ASNATIVEBYTES_ALLOW_INDEX | |
748 | 0 | Py_ASNATIVEBYTES_UNSIGNED_BUFFER); |
749 | 0 | if (bytes < 0) { |
750 | 0 | RETURN_ERR_OCCURRED; |
751 | 0 | } |
752 | 0 | if ((size_t)bytes > sizeof(unsigned short)) { |
753 | 0 | if (PyErr_WarnEx(PyExc_DeprecationWarning, |
754 | 0 | "integer value out of range", 1) < 0) |
755 | 0 | { |
756 | 0 | RETURN_ERR_OCCURRED; |
757 | 0 | } |
758 | 0 | } |
759 | 0 | break; |
760 | 0 | } |
761 | | |
762 | 0 | case 'i': {/* signed int */ |
763 | 0 | int *p = va_arg(*p_va, int *); |
764 | 0 | long ival = PyLong_AsLong(arg); |
765 | 0 | if (ival == -1 && PyErr_Occurred()) |
766 | 0 | RETURN_ERR_OCCURRED; |
767 | 0 | else if (ival > INT_MAX) { |
768 | 0 | PyErr_SetString(PyExc_OverflowError, |
769 | 0 | "signed integer is greater than maximum"); |
770 | 0 | RETURN_ERR_OCCURRED; |
771 | 0 | } |
772 | 0 | else if (ival < INT_MIN) { |
773 | 0 | PyErr_SetString(PyExc_OverflowError, |
774 | 0 | "signed integer is less than minimum"); |
775 | 0 | RETURN_ERR_OCCURRED; |
776 | 0 | } |
777 | 0 | else |
778 | 0 | *p = ival; |
779 | 0 | break; |
780 | 0 | } |
781 | | |
782 | 0 | case 'I': { /* int sized bitfield, both signed and |
783 | | unsigned allowed */ |
784 | 0 | unsigned int *p = va_arg(*p_va, unsigned int *); |
785 | 0 | Py_ssize_t bytes = PyLong_AsNativeBytes(arg, p, sizeof(unsigned int), |
786 | 0 | Py_ASNATIVEBYTES_NATIVE_ENDIAN | |
787 | 0 | Py_ASNATIVEBYTES_ALLOW_INDEX | |
788 | 0 | Py_ASNATIVEBYTES_UNSIGNED_BUFFER); |
789 | 0 | if (bytes < 0) { |
790 | 0 | RETURN_ERR_OCCURRED; |
791 | 0 | } |
792 | 0 | if ((size_t)bytes > sizeof(unsigned int)) { |
793 | 0 | if (PyErr_WarnEx(PyExc_DeprecationWarning, |
794 | 0 | "integer value out of range", 1) < 0) |
795 | 0 | { |
796 | 0 | RETURN_ERR_OCCURRED; |
797 | 0 | } |
798 | 0 | } |
799 | 0 | break; |
800 | 0 | } |
801 | | |
802 | 932k | case 'n': /* Py_ssize_t */ |
803 | 932k | { |
804 | 932k | PyObject *iobj; |
805 | 932k | Py_ssize_t *p = va_arg(*p_va, Py_ssize_t *); |
806 | 932k | Py_ssize_t ival = -1; |
807 | 932k | iobj = _PyNumber_Index(arg); |
808 | 932k | if (iobj != NULL) { |
809 | 932k | ival = PyLong_AsSsize_t(iobj); |
810 | 932k | Py_DECREF(iobj); |
811 | 932k | } |
812 | 932k | if (ival == -1 && PyErr_Occurred()) |
813 | 107 | RETURN_ERR_OCCURRED; |
814 | 932k | *p = ival; |
815 | 932k | break; |
816 | 932k | } |
817 | 0 | case 'l': {/* long int */ |
818 | 0 | long *p = va_arg(*p_va, long *); |
819 | 0 | long ival = PyLong_AsLong(arg); |
820 | 0 | if (ival == -1 && PyErr_Occurred()) |
821 | 0 | RETURN_ERR_OCCURRED; |
822 | 0 | else |
823 | 0 | *p = ival; |
824 | 0 | break; |
825 | 0 | } |
826 | | |
827 | 0 | case 'k': { /* long sized bitfield */ |
828 | 0 | unsigned long *p = va_arg(*p_va, unsigned long *); |
829 | 0 | if (!PyIndex_Check(arg)) { |
830 | 0 | return converterr("int", arg, msgbuf, bufsize); |
831 | 0 | } |
832 | 0 | Py_ssize_t bytes = PyLong_AsNativeBytes(arg, p, sizeof(unsigned long), |
833 | 0 | Py_ASNATIVEBYTES_NATIVE_ENDIAN | |
834 | 0 | Py_ASNATIVEBYTES_ALLOW_INDEX | |
835 | 0 | Py_ASNATIVEBYTES_UNSIGNED_BUFFER); |
836 | 0 | if (bytes < 0) { |
837 | 0 | RETURN_ERR_OCCURRED; |
838 | 0 | } |
839 | 0 | if ((size_t)bytes > sizeof(unsigned long)) { |
840 | 0 | if (PyErr_WarnEx(PyExc_DeprecationWarning, |
841 | 0 | "integer value out of range", 1) < 0) |
842 | 0 | { |
843 | 0 | RETURN_ERR_OCCURRED; |
844 | 0 | } |
845 | 0 | } |
846 | 0 | break; |
847 | 0 | } |
848 | | |
849 | 0 | case 'L': {/* long long */ |
850 | 0 | long long *p = va_arg( *p_va, long long * ); |
851 | 0 | long long ival = PyLong_AsLongLong(arg); |
852 | 0 | if (ival == (long long)-1 && PyErr_Occurred()) |
853 | 0 | RETURN_ERR_OCCURRED; |
854 | 0 | else |
855 | 0 | *p = ival; |
856 | 0 | break; |
857 | 0 | } |
858 | | |
859 | 0 | case 'K': { /* long long sized bitfield */ |
860 | 0 | unsigned long long *p = va_arg(*p_va, unsigned long long *); |
861 | 0 | if (!PyIndex_Check(arg)) { |
862 | 0 | return converterr("int", arg, msgbuf, bufsize); |
863 | 0 | } |
864 | 0 | Py_ssize_t bytes = PyLong_AsNativeBytes(arg, p, sizeof(unsigned long long), |
865 | 0 | Py_ASNATIVEBYTES_NATIVE_ENDIAN | |
866 | 0 | Py_ASNATIVEBYTES_ALLOW_INDEX | |
867 | 0 | Py_ASNATIVEBYTES_UNSIGNED_BUFFER); |
868 | 0 | if (bytes < 0) { |
869 | 0 | RETURN_ERR_OCCURRED; |
870 | 0 | } |
871 | 0 | if ((size_t)bytes > sizeof(unsigned long long)) { |
872 | 0 | if (PyErr_WarnEx(PyExc_DeprecationWarning, |
873 | 0 | "integer value out of range", 1) < 0) |
874 | 0 | { |
875 | 0 | RETURN_ERR_OCCURRED; |
876 | 0 | } |
877 | 0 | } |
878 | 0 | break; |
879 | 0 | } |
880 | | |
881 | 0 | case 'f': {/* float */ |
882 | 0 | float *p = va_arg(*p_va, float *); |
883 | 0 | double dval = PyFloat_AsDouble(arg); |
884 | 0 | if (dval == -1.0 && PyErr_Occurred()) |
885 | 0 | RETURN_ERR_OCCURRED; |
886 | 0 | else |
887 | 0 | *p = (float) dval; |
888 | 0 | break; |
889 | 0 | } |
890 | | |
891 | 0 | case 'd': {/* double */ |
892 | 0 | double *p = va_arg(*p_va, double *); |
893 | 0 | double dval = PyFloat_AsDouble(arg); |
894 | 0 | if (dval == -1.0 && PyErr_Occurred()) |
895 | 0 | RETURN_ERR_OCCURRED; |
896 | 0 | else |
897 | 0 | *p = dval; |
898 | 0 | break; |
899 | 0 | } |
900 | | |
901 | 0 | case 'D': {/* complex double */ |
902 | 0 | Py_complex *p = va_arg(*p_va, Py_complex *); |
903 | 0 | Py_complex cval; |
904 | 0 | cval = PyComplex_AsCComplex(arg); |
905 | 0 | if (PyErr_Occurred()) |
906 | 0 | RETURN_ERR_OCCURRED; |
907 | 0 | else |
908 | 0 | *p = cval; |
909 | 0 | break; |
910 | 0 | } |
911 | | |
912 | 0 | case 'c': {/* char */ |
913 | 0 | char *p = va_arg(*p_va, char *); |
914 | 0 | if (PyBytes_Check(arg)) { |
915 | 0 | if (PyBytes_GET_SIZE(arg) != 1) { |
916 | 0 | return convertcharerr("a byte string of length 1", |
917 | 0 | "a bytes object", PyBytes_GET_SIZE(arg), |
918 | 0 | msgbuf, bufsize); |
919 | 0 | } |
920 | 0 | *p = PyBytes_AS_STRING(arg)[0]; |
921 | 0 | } |
922 | 0 | else if (PyByteArray_Check(arg)) { |
923 | 0 | if (PyByteArray_GET_SIZE(arg) != 1) { |
924 | 0 | return convertcharerr("a byte string of length 1", |
925 | 0 | "a bytearray object", PyByteArray_GET_SIZE(arg), |
926 | 0 | msgbuf, bufsize); |
927 | 0 | } |
928 | 0 | *p = PyByteArray_AS_STRING(arg)[0]; |
929 | 0 | } |
930 | 0 | else |
931 | 0 | return converterr("a byte string of length 1", arg, msgbuf, bufsize); |
932 | 0 | break; |
933 | 0 | } |
934 | | |
935 | 0 | case 'C': {/* unicode char */ |
936 | 0 | int *p = va_arg(*p_va, int *); |
937 | 0 | int kind; |
938 | 0 | const void *data; |
939 | |
|
940 | 0 | if (!PyUnicode_Check(arg)) |
941 | 0 | return converterr("a unicode character", arg, msgbuf, bufsize); |
942 | | |
943 | 0 | if (PyUnicode_GET_LENGTH(arg) != 1) { |
944 | 0 | return convertcharerr("a unicode character", |
945 | 0 | "a string", PyUnicode_GET_LENGTH(arg), |
946 | 0 | msgbuf, bufsize); |
947 | 0 | } |
948 | | |
949 | 0 | kind = PyUnicode_KIND(arg); |
950 | 0 | data = PyUnicode_DATA(arg); |
951 | 0 | *p = PyUnicode_READ(kind, data, 0); |
952 | 0 | break; |
953 | 0 | } |
954 | | |
955 | 13.5k | case 'p': {/* boolean *p*redicate */ |
956 | 13.5k | int *p = va_arg(*p_va, int *); |
957 | 13.5k | int val = PyObject_IsTrue(arg); |
958 | 13.5k | if (val > 0) |
959 | 5.66k | *p = 1; |
960 | 7.93k | else if (val == 0) |
961 | 7.93k | *p = 0; |
962 | 0 | else |
963 | 0 | RETURN_ERR_OCCURRED; |
964 | 13.5k | break; |
965 | 13.5k | } |
966 | | |
967 | | /* XXX WAAAAH! 's', 'y', 'z', 'u', 'Z', 'e', 'w' codes all |
968 | | need to be cleaned up! */ |
969 | | |
970 | 13.5k | case 'y': {/* any bytes-like object */ |
971 | 0 | void **p = (void **)va_arg(*p_va, char **); |
972 | 0 | const char *buf; |
973 | 0 | Py_ssize_t count; |
974 | 0 | if (*format == '*') { |
975 | 0 | if (getbuffer(arg, (Py_buffer*)p, &buf) < 0) |
976 | 0 | return converterr(buf, arg, msgbuf, bufsize); |
977 | 0 | format++; |
978 | 0 | if (addcleanup(p, freelist, cleanup_buffer)) { |
979 | 0 | return converterr( |
980 | 0 | "(cleanup problem)", |
981 | 0 | arg, msgbuf, bufsize); |
982 | 0 | } |
983 | 0 | break; |
984 | 0 | } |
985 | 0 | count = convertbuffer(arg, (const void **)p, &buf); |
986 | 0 | if (count < 0) |
987 | 0 | return converterr(buf, arg, msgbuf, bufsize); |
988 | 0 | if (*format == '#') { |
989 | 0 | Py_ssize_t *psize = va_arg(*p_va, Py_ssize_t*); |
990 | 0 | *psize = count; |
991 | 0 | format++; |
992 | 0 | } else { |
993 | 0 | if (strlen(*p) != (size_t)count) { |
994 | 0 | PyErr_SetString(PyExc_ValueError, "embedded null byte"); |
995 | 0 | RETURN_ERR_OCCURRED; |
996 | 0 | } |
997 | 0 | } |
998 | 0 | break; |
999 | 0 | } |
1000 | | |
1001 | 0 | case 's': /* text string or bytes-like object */ |
1002 | 0 | case 'z': /* text string, bytes-like object or None */ |
1003 | 0 | { |
1004 | 0 | if (*format == '*') { |
1005 | | /* "s*" or "z*" */ |
1006 | 0 | Py_buffer *p = (Py_buffer *)va_arg(*p_va, Py_buffer *); |
1007 | |
|
1008 | 0 | if (c == 'z' && arg == Py_None) |
1009 | 0 | PyBuffer_FillInfo(p, NULL, NULL, 0, 1, 0); |
1010 | 0 | else if (PyUnicode_Check(arg)) { |
1011 | 0 | Py_ssize_t len; |
1012 | 0 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
1013 | 0 | if (sarg == NULL) |
1014 | 0 | return converterr(CONV_UNICODE, |
1015 | 0 | arg, msgbuf, bufsize); |
1016 | 0 | PyBuffer_FillInfo(p, arg, (void *)sarg, len, 1, 0); |
1017 | 0 | } |
1018 | 0 | else { /* any bytes-like object */ |
1019 | 0 | const char *buf; |
1020 | 0 | if (getbuffer(arg, p, &buf) < 0) |
1021 | 0 | return converterr(buf, arg, msgbuf, bufsize); |
1022 | 0 | } |
1023 | 0 | if (addcleanup(p, freelist, cleanup_buffer)) { |
1024 | 0 | return converterr( |
1025 | 0 | "(cleanup problem)", |
1026 | 0 | arg, msgbuf, bufsize); |
1027 | 0 | } |
1028 | 0 | format++; |
1029 | 0 | } else if (*format == '#') { /* a string or read-only bytes-like object */ |
1030 | | /* "s#" or "z#" */ |
1031 | 0 | const void **p = (const void **)va_arg(*p_va, const char **); |
1032 | 0 | Py_ssize_t *psize = va_arg(*p_va, Py_ssize_t*); |
1033 | |
|
1034 | 0 | if (c == 'z' && arg == Py_None) { |
1035 | 0 | *p = NULL; |
1036 | 0 | *psize = 0; |
1037 | 0 | } |
1038 | 0 | else if (PyUnicode_Check(arg)) { |
1039 | 0 | Py_ssize_t len; |
1040 | 0 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
1041 | 0 | if (sarg == NULL) |
1042 | 0 | return converterr(CONV_UNICODE, |
1043 | 0 | arg, msgbuf, bufsize); |
1044 | 0 | *p = sarg; |
1045 | 0 | *psize = len; |
1046 | 0 | } |
1047 | 0 | else { /* read-only bytes-like object */ |
1048 | | /* XXX Really? */ |
1049 | 0 | const char *buf; |
1050 | 0 | Py_ssize_t count = convertbuffer(arg, p, &buf); |
1051 | 0 | if (count < 0) |
1052 | 0 | return converterr(buf, arg, msgbuf, bufsize); |
1053 | 0 | *psize = count; |
1054 | 0 | } |
1055 | 0 | format++; |
1056 | 0 | } else { |
1057 | | /* "s" or "z" */ |
1058 | 0 | const char **p = va_arg(*p_va, const char **); |
1059 | 0 | Py_ssize_t len; |
1060 | 0 | sarg = NULL; |
1061 | |
|
1062 | 0 | if (c == 'z' && arg == Py_None) |
1063 | 0 | *p = NULL; |
1064 | 0 | else if (PyUnicode_Check(arg)) { |
1065 | 0 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
1066 | 0 | if (sarg == NULL) |
1067 | 0 | return converterr(CONV_UNICODE, |
1068 | 0 | arg, msgbuf, bufsize); |
1069 | 0 | if (strlen(sarg) != (size_t)len) { |
1070 | 0 | PyErr_SetString(PyExc_ValueError, "embedded null character"); |
1071 | 0 | RETURN_ERR_OCCURRED; |
1072 | 0 | } |
1073 | 0 | *p = sarg; |
1074 | 0 | } |
1075 | 0 | else |
1076 | 0 | return converterr(c == 'z' ? "str or None" : "str", |
1077 | 0 | arg, msgbuf, bufsize); |
1078 | 0 | } |
1079 | 0 | break; |
1080 | 0 | } |
1081 | | |
1082 | 0 | case 'e': {/* encoded string */ |
1083 | 0 | char **buffer; |
1084 | 0 | const char *encoding; |
1085 | 0 | PyObject *s; |
1086 | 0 | int recode_strings; |
1087 | 0 | Py_ssize_t size; |
1088 | 0 | const char *ptr; |
1089 | | |
1090 | | /* Get 'e' parameter: the encoding name */ |
1091 | 0 | encoding = (const char *)va_arg(*p_va, const char *); |
1092 | 0 | if (encoding == NULL) |
1093 | 0 | encoding = PyUnicode_GetDefaultEncoding(); |
1094 | | |
1095 | | /* Get output buffer parameter: |
1096 | | 's' (recode all objects via Unicode) or |
1097 | | 't' (only recode non-string objects) |
1098 | | */ |
1099 | 0 | if (*format == 's') |
1100 | 0 | recode_strings = 1; |
1101 | 0 | else if (*format == 't') |
1102 | 0 | recode_strings = 0; |
1103 | 0 | else |
1104 | 0 | return converterr( |
1105 | 0 | "(unknown parser marker combination)", |
1106 | 0 | arg, msgbuf, bufsize); |
1107 | 0 | buffer = (char **)va_arg(*p_va, char **); |
1108 | 0 | format++; |
1109 | 0 | if (buffer == NULL) |
1110 | 0 | return converterr("(buffer is NULL)", |
1111 | 0 | arg, msgbuf, bufsize); |
1112 | | |
1113 | | /* Encode object */ |
1114 | 0 | if (!recode_strings && |
1115 | 0 | (PyBytes_Check(arg) || PyByteArray_Check(arg))) { |
1116 | 0 | s = Py_NewRef(arg); |
1117 | 0 | if (PyBytes_Check(arg)) { |
1118 | 0 | size = PyBytes_GET_SIZE(s); |
1119 | 0 | ptr = PyBytes_AS_STRING(s); |
1120 | 0 | } |
1121 | 0 | else { |
1122 | 0 | size = PyByteArray_GET_SIZE(s); |
1123 | 0 | ptr = PyByteArray_AS_STRING(s); |
1124 | 0 | } |
1125 | 0 | } |
1126 | 0 | else if (PyUnicode_Check(arg)) { |
1127 | | /* Encode object; use default error handling */ |
1128 | 0 | s = PyUnicode_AsEncodedString(arg, |
1129 | 0 | encoding, |
1130 | 0 | NULL); |
1131 | 0 | if (s == NULL) |
1132 | 0 | return converterr("(encoding failed)", |
1133 | 0 | arg, msgbuf, bufsize); |
1134 | 0 | assert(PyBytes_Check(s)); |
1135 | 0 | size = PyBytes_GET_SIZE(s); |
1136 | 0 | ptr = PyBytes_AS_STRING(s); |
1137 | 0 | if (ptr == NULL) |
1138 | 0 | ptr = ""; |
1139 | 0 | } |
1140 | 0 | else { |
1141 | 0 | return converterr( |
1142 | 0 | recode_strings ? "str" : "str, bytes or bytearray", |
1143 | 0 | arg, msgbuf, bufsize); |
1144 | 0 | } |
1145 | | |
1146 | | /* Write output; output is guaranteed to be 0-terminated */ |
1147 | 0 | if (*format == '#') { |
1148 | | /* Using buffer length parameter '#': |
1149 | | |
1150 | | - if *buffer is NULL, a new buffer of the |
1151 | | needed size is allocated and the data |
1152 | | copied into it; *buffer is updated to point |
1153 | | to the new buffer; the caller is |
1154 | | responsible for PyMem_Free()ing it after |
1155 | | usage |
1156 | | |
1157 | | - if *buffer is not NULL, the data is |
1158 | | copied to *buffer; *buffer_len has to be |
1159 | | set to the size of the buffer on input; |
1160 | | buffer overflow is signalled with an error; |
1161 | | buffer has to provide enough room for the |
1162 | | encoded string plus the trailing 0-byte |
1163 | | |
1164 | | - in both cases, *buffer_len is updated to |
1165 | | the size of the buffer /excluding/ the |
1166 | | trailing 0-byte |
1167 | | |
1168 | | */ |
1169 | 0 | Py_ssize_t *psize = va_arg(*p_va, Py_ssize_t*); |
1170 | |
|
1171 | 0 | format++; |
1172 | 0 | if (psize == NULL) { |
1173 | 0 | Py_DECREF(s); |
1174 | 0 | return converterr( |
1175 | 0 | "(buffer_len is NULL)", |
1176 | 0 | arg, msgbuf, bufsize); |
1177 | 0 | } |
1178 | 0 | if (*buffer == NULL) { |
1179 | 0 | *buffer = PyMem_NEW(char, size + 1); |
1180 | 0 | if (*buffer == NULL) { |
1181 | 0 | Py_DECREF(s); |
1182 | 0 | PyErr_NoMemory(); |
1183 | 0 | RETURN_ERR_OCCURRED; |
1184 | 0 | } |
1185 | 0 | if (addcleanup(buffer, freelist, cleanup_ptr)) { |
1186 | 0 | Py_DECREF(s); |
1187 | 0 | return converterr( |
1188 | 0 | "(cleanup problem)", |
1189 | 0 | arg, msgbuf, bufsize); |
1190 | 0 | } |
1191 | 0 | } else { |
1192 | 0 | if (size + 1 > *psize) { |
1193 | 0 | Py_DECREF(s); |
1194 | 0 | PyErr_Format(PyExc_ValueError, |
1195 | 0 | "encoded string too long " |
1196 | 0 | "(%zd, maximum length %zd)", |
1197 | 0 | (Py_ssize_t)size, (Py_ssize_t)(*psize - 1)); |
1198 | 0 | RETURN_ERR_OCCURRED; |
1199 | 0 | } |
1200 | 0 | } |
1201 | 0 | memcpy(*buffer, ptr, size+1); |
1202 | |
|
1203 | 0 | *psize = size; |
1204 | 0 | } |
1205 | 0 | else { |
1206 | | /* Using a 0-terminated buffer: |
1207 | | |
1208 | | - the encoded string has to be 0-terminated |
1209 | | for this variant to work; if it is not, an |
1210 | | error raised |
1211 | | |
1212 | | - a new buffer of the needed size is |
1213 | | allocated and the data copied into it; |
1214 | | *buffer is updated to point to the new |
1215 | | buffer; the caller is responsible for |
1216 | | PyMem_Free()ing it after usage |
1217 | | |
1218 | | */ |
1219 | 0 | if ((Py_ssize_t)strlen(ptr) != size) { |
1220 | 0 | Py_DECREF(s); |
1221 | 0 | return converterr( |
1222 | 0 | "encoded string without null bytes", |
1223 | 0 | arg, msgbuf, bufsize); |
1224 | 0 | } |
1225 | 0 | *buffer = PyMem_NEW(char, size + 1); |
1226 | 0 | if (*buffer == NULL) { |
1227 | 0 | Py_DECREF(s); |
1228 | 0 | PyErr_NoMemory(); |
1229 | 0 | RETURN_ERR_OCCURRED; |
1230 | 0 | } |
1231 | 0 | if (addcleanup(buffer, freelist, cleanup_ptr)) { |
1232 | 0 | Py_DECREF(s); |
1233 | 0 | return converterr("(cleanup problem)", |
1234 | 0 | arg, msgbuf, bufsize); |
1235 | 0 | } |
1236 | 0 | memcpy(*buffer, ptr, size+1); |
1237 | 0 | } |
1238 | 0 | Py_DECREF(s); |
1239 | 0 | break; |
1240 | 0 | } |
1241 | | |
1242 | 0 | case 'S': { /* PyBytes object */ |
1243 | 0 | PyObject **p = va_arg(*p_va, PyObject **); |
1244 | 0 | if (PyBytes_Check(arg)) |
1245 | 0 | *p = arg; |
1246 | 0 | else |
1247 | 0 | return converterr("bytes", arg, msgbuf, bufsize); |
1248 | 0 | break; |
1249 | 0 | } |
1250 | | |
1251 | 0 | case 'Y': { /* PyByteArray object */ |
1252 | 0 | PyObject **p = va_arg(*p_va, PyObject **); |
1253 | 0 | if (PyByteArray_Check(arg)) |
1254 | 0 | *p = arg; |
1255 | 0 | else |
1256 | 0 | return converterr("bytearray", arg, msgbuf, bufsize); |
1257 | 0 | break; |
1258 | 0 | } |
1259 | | |
1260 | 1.47M | case 'U': { /* PyUnicode object */ |
1261 | 1.47M | PyObject **p = va_arg(*p_va, PyObject **); |
1262 | 1.47M | if (PyUnicode_Check(arg)) { |
1263 | 1.47M | *p = arg; |
1264 | 1.47M | } |
1265 | 0 | else |
1266 | 0 | return converterr("str", arg, msgbuf, bufsize); |
1267 | 1.47M | break; |
1268 | 1.47M | } |
1269 | | |
1270 | 1.47M | case 'O': { /* object */ |
1271 | 860k | PyTypeObject *type; |
1272 | 860k | PyObject **p; |
1273 | 860k | if (*format == '!') { |
1274 | 633k | type = va_arg(*p_va, PyTypeObject*); |
1275 | 633k | p = va_arg(*p_va, PyObject **); |
1276 | 633k | format++; |
1277 | 633k | if (PyType_IsSubtype(Py_TYPE(arg), type)) |
1278 | 633k | *p = arg; |
1279 | 0 | else |
1280 | 0 | return converterr(type->tp_name, arg, msgbuf, bufsize); |
1281 | | |
1282 | 633k | } |
1283 | 227k | else if (*format == '&') { |
1284 | 0 | typedef int (*converter)(PyObject *, void *); |
1285 | 0 | converter convert = va_arg(*p_va, converter); |
1286 | 0 | void *addr = va_arg(*p_va, void *); |
1287 | 0 | int res; |
1288 | 0 | format++; |
1289 | 0 | if (! (res = (*convert)(arg, addr))) |
1290 | 0 | return converterr("(unspecified)", |
1291 | 0 | arg, msgbuf, bufsize); |
1292 | 0 | if (res == Py_CLEANUP_SUPPORTED && |
1293 | 0 | addcleanup(addr, freelist, convert) == -1) |
1294 | 0 | return converterr("(cleanup problem)", |
1295 | 0 | arg, msgbuf, bufsize); |
1296 | 0 | } |
1297 | 227k | else { |
1298 | 227k | p = va_arg(*p_va, PyObject **); |
1299 | 227k | *p = arg; |
1300 | 227k | } |
1301 | 860k | break; |
1302 | 860k | } |
1303 | | |
1304 | | |
1305 | 860k | case 'w': { /* "w*": memory buffer, read-write access */ |
1306 | 0 | void **p = va_arg(*p_va, void **); |
1307 | |
|
1308 | 0 | if (*format != '*') |
1309 | 0 | return converterr( |
1310 | 0 | "(invalid use of 'w' format character)", |
1311 | 0 | arg, msgbuf, bufsize); |
1312 | 0 | format++; |
1313 | | |
1314 | | /* Caller is interested in Py_buffer, and the object supports it |
1315 | | directly. The request implicitly asks for PyBUF_SIMPLE, so the |
1316 | | result is C-contiguous with format 'B'. */ |
1317 | 0 | if (PyObject_GetBuffer(arg, (Py_buffer*)p, PyBUF_WRITABLE) < 0) { |
1318 | 0 | PyErr_Clear(); |
1319 | 0 | return converterr("read-write bytes-like object", |
1320 | 0 | arg, msgbuf, bufsize); |
1321 | 0 | } |
1322 | 0 | assert(PyBuffer_IsContiguous((Py_buffer *)p, 'C')); |
1323 | 0 | if (addcleanup(p, freelist, cleanup_buffer)) { |
1324 | 0 | return converterr( |
1325 | 0 | "(cleanup problem)", |
1326 | 0 | arg, msgbuf, bufsize); |
1327 | 0 | } |
1328 | 0 | break; |
1329 | 0 | } |
1330 | | |
1331 | 0 | default: |
1332 | 0 | return converterr("(impossible<bad format char>)", arg, msgbuf, bufsize); |
1333 | | |
1334 | 3.28M | } |
1335 | | |
1336 | 3.28M | *p_format = format; |
1337 | 3.28M | return NULL; |
1338 | | |
1339 | 3.28M | #undef RETURN_ERR_OCCURRED |
1340 | 3.28M | } |
1341 | | |
1342 | | static Py_ssize_t |
1343 | | convertbuffer(PyObject *arg, const void **p, const char **errmsg) |
1344 | 0 | { |
1345 | 0 | PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer; |
1346 | 0 | Py_ssize_t count; |
1347 | 0 | Py_buffer view; |
1348 | |
|
1349 | 0 | *errmsg = NULL; |
1350 | 0 | *p = NULL; |
1351 | 0 | if (pb != NULL && pb->bf_releasebuffer != NULL) { |
1352 | 0 | *errmsg = "read-only bytes-like object"; |
1353 | 0 | return -1; |
1354 | 0 | } |
1355 | | |
1356 | 0 | if (getbuffer(arg, &view, errmsg) < 0) |
1357 | 0 | return -1; |
1358 | 0 | count = view.len; |
1359 | 0 | *p = view.buf; |
1360 | 0 | PyBuffer_Release(&view); |
1361 | 0 | return count; |
1362 | 0 | } |
1363 | | |
1364 | | static int |
1365 | | getbuffer(PyObject *arg, Py_buffer *view, const char **errmsg) |
1366 | 0 | { |
1367 | | /* PyBUF_SIMPLE implies C-contiguous */ |
1368 | 0 | if (PyObject_GetBuffer(arg, view, PyBUF_SIMPLE) != 0) { |
1369 | 0 | *errmsg = "bytes-like object"; |
1370 | 0 | return -1; |
1371 | 0 | } |
1372 | 0 | assert(PyBuffer_IsContiguous(view, 'C')); |
1373 | 0 | return 0; |
1374 | 0 | } |
1375 | | |
1376 | | /* Support for keyword arguments donated by |
1377 | | Geoff Philbrick <philbric@delphi.hks.com> */ |
1378 | | |
1379 | | /* Return false (0) for error, else true. */ |
1380 | | int |
1381 | | PyArg_ParseTupleAndKeywords(PyObject *args, |
1382 | | PyObject *keywords, |
1383 | | const char *format, |
1384 | | const char * const *kwlist, ...) |
1385 | 31.9k | { |
1386 | 31.9k | int retval; |
1387 | 31.9k | va_list va; |
1388 | | |
1389 | 31.9k | if ((args == NULL || !PyTuple_Check(args)) || |
1390 | 31.9k | (keywords != NULL && !PyDict_Check(keywords)) || |
1391 | 31.9k | format == NULL || |
1392 | 31.9k | kwlist == NULL) |
1393 | 0 | { |
1394 | 0 | PyErr_BadInternalCall(); |
1395 | 0 | return 0; |
1396 | 0 | } |
1397 | | |
1398 | 31.9k | va_start(va, kwlist); |
1399 | 31.9k | retval = vgetargskeywords(args, keywords, format, kwlist, &va, 0); |
1400 | 31.9k | va_end(va); |
1401 | 31.9k | return retval; |
1402 | 31.9k | } |
1403 | | |
1404 | | int |
1405 | | _PyArg_ParseTupleAndKeywords_SizeT(PyObject *args, |
1406 | | PyObject *keywords, |
1407 | | const char *format, |
1408 | | const char * const *kwlist, ...) |
1409 | 0 | { |
1410 | 0 | int retval; |
1411 | 0 | va_list va; |
1412 | |
|
1413 | 0 | if ((args == NULL || !PyTuple_Check(args)) || |
1414 | 0 | (keywords != NULL && !PyDict_Check(keywords)) || |
1415 | 0 | format == NULL || |
1416 | 0 | kwlist == NULL) |
1417 | 0 | { |
1418 | 0 | PyErr_BadInternalCall(); |
1419 | 0 | return 0; |
1420 | 0 | } |
1421 | | |
1422 | 0 | va_start(va, kwlist); |
1423 | 0 | retval = vgetargskeywords(args, keywords, format, |
1424 | 0 | kwlist, &va, 0); |
1425 | 0 | va_end(va); |
1426 | 0 | return retval; |
1427 | 0 | } |
1428 | | |
1429 | | |
1430 | | int |
1431 | | PyArg_VaParseTupleAndKeywords(PyObject *args, |
1432 | | PyObject *keywords, |
1433 | | const char *format, |
1434 | | const char * const *kwlist, va_list va) |
1435 | 0 | { |
1436 | 0 | int retval; |
1437 | 0 | va_list lva; |
1438 | |
|
1439 | 0 | if ((args == NULL || !PyTuple_Check(args)) || |
1440 | 0 | (keywords != NULL && !PyDict_Check(keywords)) || |
1441 | 0 | format == NULL || |
1442 | 0 | kwlist == NULL) |
1443 | 0 | { |
1444 | 0 | PyErr_BadInternalCall(); |
1445 | 0 | return 0; |
1446 | 0 | } |
1447 | | |
1448 | 0 | va_copy(lva, va); |
1449 | |
|
1450 | 0 | retval = vgetargskeywords(args, keywords, format, kwlist, &lva, 0); |
1451 | 0 | va_end(lva); |
1452 | 0 | return retval; |
1453 | 0 | } |
1454 | | |
1455 | | int |
1456 | | _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *args, |
1457 | | PyObject *keywords, |
1458 | | const char *format, |
1459 | | const char * const *kwlist, va_list va) |
1460 | 0 | { |
1461 | 0 | int retval; |
1462 | 0 | va_list lva; |
1463 | |
|
1464 | 0 | if ((args == NULL || !PyTuple_Check(args)) || |
1465 | 0 | (keywords != NULL && !PyDict_Check(keywords)) || |
1466 | 0 | format == NULL || |
1467 | 0 | kwlist == NULL) |
1468 | 0 | { |
1469 | 0 | PyErr_BadInternalCall(); |
1470 | 0 | return 0; |
1471 | 0 | } |
1472 | | |
1473 | 0 | va_copy(lva, va); |
1474 | |
|
1475 | 0 | retval = vgetargskeywords(args, keywords, format, |
1476 | 0 | kwlist, &lva, 0); |
1477 | 0 | va_end(lva); |
1478 | 0 | return retval; |
1479 | 0 | } |
1480 | | |
1481 | | PyAPI_FUNC(int) |
1482 | | _PyArg_ParseTupleAndKeywordsFast(PyObject *args, PyObject *keywords, |
1483 | | struct _PyArg_Parser *parser, ...) |
1484 | 0 | { |
1485 | 0 | int retval; |
1486 | 0 | va_list va; |
1487 | |
|
1488 | 0 | va_start(va, parser); |
1489 | 0 | retval = vgetargskeywordsfast(args, keywords, parser, &va, 0); |
1490 | 0 | va_end(va); |
1491 | 0 | return retval; |
1492 | 0 | } |
1493 | | |
1494 | | int |
1495 | | _PyArg_ParseTupleAndKeywordsFast_SizeT(PyObject *args, PyObject *keywords, |
1496 | | struct _PyArg_Parser *parser, ...) |
1497 | 0 | { |
1498 | 0 | int retval; |
1499 | 0 | va_list va; |
1500 | |
|
1501 | 0 | va_start(va, parser); |
1502 | 0 | retval = vgetargskeywordsfast(args, keywords, parser, &va, 0); |
1503 | 0 | va_end(va); |
1504 | 0 | return retval; |
1505 | 0 | } |
1506 | | |
1507 | | int |
1508 | | _PyArg_ParseStackAndKeywords(PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames, |
1509 | | struct _PyArg_Parser *parser, ...) |
1510 | 0 | { |
1511 | 0 | int retval; |
1512 | 0 | va_list va; |
1513 | |
|
1514 | 0 | va_start(va, parser); |
1515 | 0 | retval = vgetargskeywordsfast_impl(args, nargs, NULL, kwnames, parser, &va, 0); |
1516 | 0 | va_end(va); |
1517 | 0 | return retval; |
1518 | 0 | } |
1519 | | |
1520 | | int |
1521 | | _PyArg_ParseStackAndKeywords_SizeT(PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames, |
1522 | | struct _PyArg_Parser *parser, ...) |
1523 | 0 | { |
1524 | 0 | int retval; |
1525 | 0 | va_list va; |
1526 | |
|
1527 | 0 | va_start(va, parser); |
1528 | 0 | retval = vgetargskeywordsfast_impl(args, nargs, NULL, kwnames, parser, &va, 0); |
1529 | 0 | va_end(va); |
1530 | 0 | return retval; |
1531 | 0 | } |
1532 | | |
1533 | | |
1534 | | static void |
1535 | | error_unexpected_keyword_arg(PyObject *kwargs, PyObject *kwnames, PyObject *kwtuple, const char *fname) |
1536 | 0 | { |
1537 | | /* make sure there are no extraneous keyword arguments */ |
1538 | 0 | Py_ssize_t j = 0; |
1539 | 0 | while (1) { |
1540 | 0 | PyObject *keyword; |
1541 | 0 | if (kwargs != NULL) { |
1542 | 0 | if (!PyDict_Next(kwargs, &j, &keyword, NULL)) |
1543 | 0 | break; |
1544 | 0 | } |
1545 | 0 | else { |
1546 | 0 | if (j >= PyTuple_GET_SIZE(kwnames)) |
1547 | 0 | break; |
1548 | 0 | keyword = PyTuple_GET_ITEM(kwnames, j); |
1549 | 0 | j++; |
1550 | 0 | } |
1551 | 0 | if (!PyUnicode_Check(keyword)) { |
1552 | 0 | PyErr_SetString(PyExc_TypeError, |
1553 | 0 | "keywords must be strings"); |
1554 | 0 | return; |
1555 | 0 | } |
1556 | | |
1557 | 0 | int match = PySequence_Contains(kwtuple, keyword); |
1558 | 0 | if (match <= 0) { |
1559 | 0 | if (!match) { |
1560 | 0 | PyObject *kwlist = PySequence_List(kwtuple); |
1561 | 0 | if (!kwlist) { |
1562 | 0 | return; |
1563 | 0 | } |
1564 | 0 | PyObject *suggestion_keyword = _Py_CalculateSuggestions(kwlist, keyword); |
1565 | 0 | Py_DECREF(kwlist); |
1566 | |
|
1567 | 0 | if (suggestion_keyword) { |
1568 | 0 | PyErr_Format(PyExc_TypeError, |
1569 | 0 | "%.200s%s got an unexpected keyword argument '%S'." |
1570 | 0 | " Did you mean '%S'?", |
1571 | 0 | (fname == NULL) ? "this function" : fname, |
1572 | 0 | (fname == NULL) ? "" : "()", |
1573 | 0 | keyword, |
1574 | 0 | suggestion_keyword); |
1575 | 0 | Py_DECREF(suggestion_keyword); |
1576 | 0 | } |
1577 | 0 | else { |
1578 | 0 | PyErr_Format(PyExc_TypeError, |
1579 | 0 | "%.200s%s got an unexpected keyword argument '%S'", |
1580 | 0 | (fname == NULL) ? "this function" : fname, |
1581 | 0 | (fname == NULL) ? "" : "()", |
1582 | 0 | keyword); |
1583 | 0 | } |
1584 | |
|
1585 | 0 | } |
1586 | 0 | return; |
1587 | 0 | } |
1588 | 0 | } |
1589 | | /* Something wrong happened. There are extraneous keyword arguments, |
1590 | | * but we don't know what. And we don't bother. */ |
1591 | 0 | PyErr_Format(PyExc_TypeError, |
1592 | 0 | "invalid keyword argument for %.200s%s", |
1593 | 0 | (fname == NULL) ? "this function" : fname, |
1594 | 0 | (fname == NULL) ? "" : "()"); |
1595 | 0 | } |
1596 | | |
1597 | | int |
1598 | | PyArg_ValidateKeywordArguments(PyObject *kwargs) |
1599 | 206 | { |
1600 | 206 | if (!PyDict_Check(kwargs)) { |
1601 | 0 | PyErr_BadInternalCall(); |
1602 | 0 | return 0; |
1603 | 0 | } |
1604 | 206 | if (!_PyDict_HasOnlyStringKeys(kwargs)) { |
1605 | 0 | PyErr_SetString(PyExc_TypeError, |
1606 | 0 | "keywords must be strings"); |
1607 | 0 | return 0; |
1608 | 0 | } |
1609 | 206 | return 1; |
1610 | 206 | } |
1611 | | |
1612 | | static PyObject * |
1613 | | new_kwtuple(const char * const *keywords, int total, int pos); |
1614 | | |
1615 | 138k | #define IS_END_OF_FORMAT(c) (c == '\0' || c == ';' || c == ':') |
1616 | | |
1617 | | static int |
1618 | | vgetargskeywords(PyObject *args, PyObject *kwargs, const char *format, |
1619 | | const char * const *kwlist, va_list *p_va, int flags) |
1620 | 31.9k | { |
1621 | 31.9k | char msgbuf[512]; |
1622 | 31.9k | int levels[32]; |
1623 | 31.9k | const char *fname, *msg, *custom_msg; |
1624 | 31.9k | int min = INT_MAX; |
1625 | 31.9k | int max = INT_MAX; |
1626 | 31.9k | int i, pos, len; |
1627 | 31.9k | int skip = 0; |
1628 | 31.9k | Py_ssize_t nargs, nkwargs; |
1629 | 31.9k | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
1630 | 31.9k | freelist_t freelist; |
1631 | | |
1632 | 31.9k | freelist.entries = static_entries; |
1633 | 31.9k | freelist.first_available = 0; |
1634 | 31.9k | freelist.entries_malloced = 0; |
1635 | | |
1636 | 31.9k | assert(args != NULL && PyTuple_Check(args)); |
1637 | 31.9k | assert(kwargs == NULL || PyDict_Check(kwargs)); |
1638 | 31.9k | assert(format != NULL); |
1639 | 31.9k | assert(kwlist != NULL); |
1640 | 31.9k | assert(p_va != NULL); |
1641 | | |
1642 | | /* grab the function name or custom error msg first (mutually exclusive) */ |
1643 | 31.9k | fname = strchr(format, ':'); |
1644 | 31.9k | if (fname) { |
1645 | 29.1k | fname++; |
1646 | 29.1k | custom_msg = NULL; |
1647 | 29.1k | } |
1648 | 2.85k | else { |
1649 | 2.85k | custom_msg = strchr(format,';'); |
1650 | 2.85k | if (custom_msg) |
1651 | 0 | custom_msg++; |
1652 | 2.85k | } |
1653 | | |
1654 | | /* scan kwlist and count the number of positional-only parameters */ |
1655 | 31.9k | for (pos = 0; kwlist[pos] && !*kwlist[pos]; pos++) { |
1656 | 8 | } |
1657 | | /* scan kwlist and get greatest possible nbr of args */ |
1658 | 143k | for (len = pos; kwlist[len]; len++) { |
1659 | 111k | if (!*kwlist[len]) { |
1660 | 0 | PyErr_SetString(PyExc_SystemError, |
1661 | 0 | "Empty keyword parameter name"); |
1662 | 0 | return cleanreturn(0, &freelist); |
1663 | 0 | } |
1664 | 111k | } |
1665 | | |
1666 | 31.9k | if (len > STATIC_FREELIST_ENTRIES) { |
1667 | 6.79k | freelist.entries = PyMem_NEW(freelistentry_t, len); |
1668 | 6.79k | if (freelist.entries == NULL) { |
1669 | 0 | PyErr_NoMemory(); |
1670 | 0 | return 0; |
1671 | 0 | } |
1672 | 6.79k | freelist.entries_malloced = 1; |
1673 | 6.79k | } |
1674 | | |
1675 | 31.9k | nargs = PyTuple_GET_SIZE(args); |
1676 | 31.9k | nkwargs = (kwargs == NULL) ? 0 : PyDict_GET_SIZE(kwargs); |
1677 | 31.9k | if (nargs + nkwargs > len) { |
1678 | | /* Adding "keyword" (when nargs == 0) prevents producing wrong error |
1679 | | messages in some special cases (see bpo-31229). */ |
1680 | 0 | PyErr_Format(PyExc_TypeError, |
1681 | 0 | "%.200s%s takes at most %d %sargument%s (%zd given)", |
1682 | 0 | (fname == NULL) ? "function" : fname, |
1683 | 0 | (fname == NULL) ? "" : "()", |
1684 | 0 | len, |
1685 | 0 | (nargs == 0) ? "keyword " : "", |
1686 | 0 | (len == 1) ? "" : "s", |
1687 | 0 | nargs + nkwargs); |
1688 | 0 | return cleanreturn(0, &freelist); |
1689 | 0 | } |
1690 | | |
1691 | | /* convert tuple args and keyword args in same loop, using kwlist to drive process */ |
1692 | 114k | for (i = 0; i < len; i++) { |
1693 | 89.9k | if (*format == '|') { |
1694 | 9.61k | if (min != INT_MAX) { |
1695 | 0 | PyErr_SetString(PyExc_SystemError, |
1696 | 0 | "Invalid format string (| specified twice)"); |
1697 | 0 | return cleanreturn(0, &freelist); |
1698 | 0 | } |
1699 | | |
1700 | 9.61k | min = i; |
1701 | 9.61k | format++; |
1702 | | |
1703 | 9.61k | if (max != INT_MAX) { |
1704 | 0 | PyErr_SetString(PyExc_SystemError, |
1705 | 0 | "Invalid format string ($ before |)"); |
1706 | 0 | return cleanreturn(0, &freelist); |
1707 | 0 | } |
1708 | 9.61k | } |
1709 | 89.9k | if (*format == '$') { |
1710 | 6.76k | if (max != INT_MAX) { |
1711 | 0 | PyErr_SetString(PyExc_SystemError, |
1712 | 0 | "Invalid format string ($ specified twice)"); |
1713 | 0 | return cleanreturn(0, &freelist); |
1714 | 0 | } |
1715 | | |
1716 | 6.76k | max = i; |
1717 | 6.76k | format++; |
1718 | | |
1719 | 6.76k | if (max < pos) { |
1720 | 0 | PyErr_SetString(PyExc_SystemError, |
1721 | 0 | "Empty parameter name after $"); |
1722 | 0 | return cleanreturn(0, &freelist); |
1723 | 0 | } |
1724 | 6.76k | if (skip) { |
1725 | | /* Now we know the minimal and the maximal numbers of |
1726 | | * positional arguments and can raise an exception with |
1727 | | * informative message (see below). */ |
1728 | 0 | break; |
1729 | 0 | } |
1730 | 6.76k | if (max < nargs) { |
1731 | 0 | if (max == 0) { |
1732 | 0 | PyErr_Format(PyExc_TypeError, |
1733 | 0 | "%.200s%s takes no positional arguments", |
1734 | 0 | (fname == NULL) ? "function" : fname, |
1735 | 0 | (fname == NULL) ? "" : "()"); |
1736 | 0 | } |
1737 | 0 | else { |
1738 | 0 | PyErr_Format(PyExc_TypeError, |
1739 | 0 | "%.200s%s takes %s %d positional argument%s" |
1740 | 0 | " (%zd given)", |
1741 | 0 | (fname == NULL) ? "function" : fname, |
1742 | 0 | (fname == NULL) ? "" : "()", |
1743 | 0 | (min != INT_MAX) ? "at most" : "exactly", |
1744 | 0 | max, |
1745 | 0 | max == 1 ? "" : "s", |
1746 | 0 | nargs); |
1747 | 0 | } |
1748 | 0 | return cleanreturn(0, &freelist); |
1749 | 0 | } |
1750 | 6.76k | } |
1751 | 89.9k | if (IS_END_OF_FORMAT(*format)) { |
1752 | 0 | PyErr_Format(PyExc_SystemError, |
1753 | 0 | "More keyword list entries (%d) than " |
1754 | 0 | "format specifiers (%d)", len, i); |
1755 | 0 | return cleanreturn(0, &freelist); |
1756 | 0 | } |
1757 | 89.9k | if (!skip) { |
1758 | 89.9k | PyObject *current_arg; |
1759 | 89.9k | if (i < nargs) { |
1760 | 72.4k | current_arg = Py_NewRef(PyTuple_GET_ITEM(args, i)); |
1761 | 72.4k | } |
1762 | 17.4k | else if (nkwargs && i >= pos) { |
1763 | 9.60k | if (PyDict_GetItemStringRef(kwargs, kwlist[i], ¤t_arg) < 0) { |
1764 | 0 | return cleanreturn(0, &freelist); |
1765 | 0 | } |
1766 | 9.60k | if (current_arg) { |
1767 | 6.61k | --nkwargs; |
1768 | 6.61k | } |
1769 | 9.60k | } |
1770 | 7.88k | else { |
1771 | 7.88k | current_arg = NULL; |
1772 | 7.88k | } |
1773 | | |
1774 | 89.9k | if (current_arg) { |
1775 | 79.0k | msg = convertitem(current_arg, &format, p_va, flags, |
1776 | 79.0k | levels, msgbuf, sizeof(msgbuf), &freelist); |
1777 | 79.0k | Py_DECREF(current_arg); |
1778 | 79.0k | if (msg) { |
1779 | 0 | seterror(i+1, msg, levels, fname, custom_msg); |
1780 | 0 | return cleanreturn(0, &freelist); |
1781 | 0 | } |
1782 | 79.0k | continue; |
1783 | 79.0k | } |
1784 | | |
1785 | 10.8k | if (i < min) { |
1786 | 0 | if (i < pos) { |
1787 | 0 | assert (min == INT_MAX); |
1788 | 0 | assert (max == INT_MAX); |
1789 | 0 | skip = 1; |
1790 | | /* At that moment we still don't know the minimal and |
1791 | | * the maximal numbers of positional arguments. Raising |
1792 | | * an exception is deferred until we encounter | and $ |
1793 | | * or the end of the format. */ |
1794 | 0 | } |
1795 | 0 | else { |
1796 | 0 | PyErr_Format(PyExc_TypeError, "%.200s%s missing required " |
1797 | 0 | "argument '%s' (pos %d)", |
1798 | 0 | (fname == NULL) ? "function" : fname, |
1799 | 0 | (fname == NULL) ? "" : "()", |
1800 | 0 | kwlist[i], i+1); |
1801 | 0 | return cleanreturn(0, &freelist); |
1802 | 0 | } |
1803 | 0 | } |
1804 | | /* current code reports success when all required args |
1805 | | * fulfilled and no keyword args left, with no further |
1806 | | * validation. XXX Maybe skip this in debug build ? |
1807 | | */ |
1808 | 10.8k | if (!nkwargs && !skip) { |
1809 | 7.88k | return cleanreturn(1, &freelist); |
1810 | 7.88k | } |
1811 | 10.8k | } |
1812 | | |
1813 | | /* We are into optional args, skip through to any remaining |
1814 | | * keyword args */ |
1815 | 2.98k | msg = skipitem(&format, p_va, flags); |
1816 | 2.98k | if (msg) { |
1817 | 0 | PyErr_Format(PyExc_SystemError, "%s: '%s'", msg, |
1818 | 0 | format); |
1819 | 0 | return cleanreturn(0, &freelist); |
1820 | 0 | } |
1821 | 2.98k | } |
1822 | | |
1823 | 24.0k | if (skip) { |
1824 | 0 | PyErr_Format(PyExc_TypeError, |
1825 | 0 | "%.200s%s takes %s %d positional argument%s" |
1826 | 0 | " (%zd given)", |
1827 | 0 | (fname == NULL) ? "function" : fname, |
1828 | 0 | (fname == NULL) ? "" : "()", |
1829 | 0 | (Py_MIN(pos, min) < i) ? "at least" : "exactly", |
1830 | 0 | Py_MIN(pos, min), |
1831 | 0 | Py_MIN(pos, min) == 1 ? "" : "s", |
1832 | 0 | nargs); |
1833 | 0 | return cleanreturn(0, &freelist); |
1834 | 0 | } |
1835 | | |
1836 | 24.0k | if (!IS_END_OF_FORMAT(*format) && (*format != '|') && (*format != '$')) { |
1837 | 0 | PyErr_Format(PyExc_SystemError, |
1838 | 0 | "more argument specifiers than keyword list entries " |
1839 | 0 | "(remaining format:'%s')", format); |
1840 | 0 | return cleanreturn(0, &freelist); |
1841 | 0 | } |
1842 | | |
1843 | 24.0k | if (nkwargs > 0) { |
1844 | 0 | PyObject *key; |
1845 | 0 | Py_ssize_t j; |
1846 | | /* make sure there are no arguments given by name and position */ |
1847 | 0 | for (i = pos; i < nargs; i++) { |
1848 | 0 | PyObject *current_arg; |
1849 | 0 | if (PyDict_GetItemStringRef(kwargs, kwlist[i], ¤t_arg) < 0) { |
1850 | 0 | return cleanreturn(0, &freelist); |
1851 | 0 | } |
1852 | 0 | if (current_arg) { |
1853 | 0 | Py_DECREF(current_arg); |
1854 | | /* arg present in tuple and in dict */ |
1855 | 0 | PyErr_Format(PyExc_TypeError, |
1856 | 0 | "argument for %.200s%s given by name ('%s') " |
1857 | 0 | "and position (%d)", |
1858 | 0 | (fname == NULL) ? "function" : fname, |
1859 | 0 | (fname == NULL) ? "" : "()", |
1860 | 0 | kwlist[i], i+1); |
1861 | 0 | return cleanreturn(0, &freelist); |
1862 | 0 | } |
1863 | 0 | } |
1864 | | /* make sure there are no extraneous keyword arguments */ |
1865 | 0 | j = 0; |
1866 | 0 | while (PyDict_Next(kwargs, &j, &key, NULL)) { |
1867 | 0 | int match = 0; |
1868 | 0 | if (!PyUnicode_Check(key)) { |
1869 | 0 | PyErr_SetString(PyExc_TypeError, |
1870 | 0 | "keywords must be strings"); |
1871 | 0 | return cleanreturn(0, &freelist); |
1872 | 0 | } |
1873 | 0 | for (i = pos; i < len; i++) { |
1874 | 0 | if (PyUnicode_EqualToUTF8(key, kwlist[i])) { |
1875 | 0 | match = 1; |
1876 | 0 | break; |
1877 | 0 | } |
1878 | 0 | } |
1879 | 0 | if (!match) { |
1880 | 0 | PyObject *_pykwtuple = new_kwtuple(kwlist, len, pos); |
1881 | 0 | if (!_pykwtuple) { |
1882 | 0 | return cleanreturn(0, &freelist); |
1883 | 0 | } |
1884 | 0 | PyObject *pykwlist = PySequence_List(_pykwtuple); |
1885 | 0 | Py_DECREF(_pykwtuple); |
1886 | 0 | if (!pykwlist) { |
1887 | 0 | return cleanreturn(0, &freelist); |
1888 | 0 | } |
1889 | 0 | PyObject *suggestion_keyword = _Py_CalculateSuggestions(pykwlist, key); |
1890 | 0 | Py_DECREF(pykwlist); |
1891 | |
|
1892 | 0 | if (suggestion_keyword) { |
1893 | 0 | PyErr_Format(PyExc_TypeError, |
1894 | 0 | "%.200s%s got an unexpected keyword argument '%S'." |
1895 | 0 | " Did you mean '%S'?", |
1896 | 0 | (fname == NULL) ? "this function" : fname, |
1897 | 0 | (fname == NULL) ? "" : "()", |
1898 | 0 | key, |
1899 | 0 | suggestion_keyword); |
1900 | 0 | Py_DECREF(suggestion_keyword); |
1901 | 0 | } |
1902 | 0 | else { |
1903 | 0 | PyErr_Format(PyExc_TypeError, |
1904 | 0 | "%.200s%s got an unexpected keyword argument '%S'", |
1905 | 0 | (fname == NULL) ? "this function" : fname, |
1906 | 0 | (fname == NULL) ? "" : "()", |
1907 | 0 | key); |
1908 | 0 | } |
1909 | 0 | return cleanreturn(0, &freelist); |
1910 | 0 | } |
1911 | 0 | } |
1912 | | /* Something wrong happened. There are extraneous keyword arguments, |
1913 | | * but we don't know what. And we don't bother. */ |
1914 | 0 | PyErr_Format(PyExc_TypeError, |
1915 | 0 | "invalid keyword argument for %.200s%s", |
1916 | 0 | (fname == NULL) ? "this function" : fname, |
1917 | 0 | (fname == NULL) ? "" : "()"); |
1918 | 0 | return cleanreturn(0, &freelist); |
1919 | 0 | } |
1920 | | |
1921 | 24.0k | return cleanreturn(1, &freelist); |
1922 | 24.0k | } |
1923 | | |
1924 | | |
1925 | | static int |
1926 | | scan_keywords(const char * const *keywords, int *ptotal, int *pposonly) |
1927 | 86 | { |
1928 | | /* scan keywords and count the number of positional-only parameters */ |
1929 | 86 | int i; |
1930 | 87 | for (i = 0; keywords[i] && !*keywords[i]; i++) { |
1931 | 1 | } |
1932 | 86 | *pposonly = i; |
1933 | | |
1934 | | /* scan keywords and get greatest possible nbr of args */ |
1935 | 371 | for (; keywords[i]; i++) { |
1936 | 285 | if (!*keywords[i]) { |
1937 | 0 | PyErr_SetString(PyExc_SystemError, |
1938 | 0 | "Empty keyword parameter name"); |
1939 | 0 | return -1; |
1940 | 0 | } |
1941 | 285 | } |
1942 | 86 | *ptotal = i; |
1943 | 86 | return 0; |
1944 | 86 | } |
1945 | | |
1946 | | static int |
1947 | | parse_format(const char *format, int total, int npos, |
1948 | | const char **pfname, const char **pcustommsg, |
1949 | | int *pmin, int *pmax) |
1950 | 0 | { |
1951 | | /* grab the function name or custom error msg first (mutually exclusive) */ |
1952 | 0 | const char *custommsg; |
1953 | 0 | const char *fname = strchr(format, ':'); |
1954 | 0 | if (fname) { |
1955 | 0 | fname++; |
1956 | 0 | custommsg = NULL; |
1957 | 0 | } |
1958 | 0 | else { |
1959 | 0 | custommsg = strchr(format,';'); |
1960 | 0 | if (custommsg) { |
1961 | 0 | custommsg++; |
1962 | 0 | } |
1963 | 0 | } |
1964 | |
|
1965 | 0 | int min = INT_MAX; |
1966 | 0 | int max = INT_MAX; |
1967 | 0 | for (int i = 0; i < total; i++) { |
1968 | 0 | if (*format == '|') { |
1969 | 0 | if (min != INT_MAX) { |
1970 | 0 | PyErr_SetString(PyExc_SystemError, |
1971 | 0 | "Invalid format string (| specified twice)"); |
1972 | 0 | return -1; |
1973 | 0 | } |
1974 | 0 | if (max != INT_MAX) { |
1975 | 0 | PyErr_SetString(PyExc_SystemError, |
1976 | 0 | "Invalid format string ($ before |)"); |
1977 | 0 | return -1; |
1978 | 0 | } |
1979 | 0 | min = i; |
1980 | 0 | format++; |
1981 | 0 | } |
1982 | 0 | if (*format == '$') { |
1983 | 0 | if (max != INT_MAX) { |
1984 | 0 | PyErr_SetString(PyExc_SystemError, |
1985 | 0 | "Invalid format string ($ specified twice)"); |
1986 | 0 | return -1; |
1987 | 0 | } |
1988 | 0 | if (i < npos) { |
1989 | 0 | PyErr_SetString(PyExc_SystemError, |
1990 | 0 | "Empty parameter name after $"); |
1991 | 0 | return -1; |
1992 | 0 | } |
1993 | 0 | max = i; |
1994 | 0 | format++; |
1995 | 0 | } |
1996 | 0 | if (IS_END_OF_FORMAT(*format)) { |
1997 | 0 | PyErr_Format(PyExc_SystemError, |
1998 | 0 | "More keyword list entries (%d) than " |
1999 | 0 | "format specifiers (%d)", total, i); |
2000 | 0 | return -1; |
2001 | 0 | } |
2002 | | |
2003 | 0 | const char *msg = skipitem(&format, NULL, 0); |
2004 | 0 | if (msg) { |
2005 | 0 | PyErr_Format(PyExc_SystemError, "%s: '%s'", msg, |
2006 | 0 | format); |
2007 | 0 | return -1; |
2008 | 0 | } |
2009 | 0 | } |
2010 | 0 | min = Py_MIN(min, total); |
2011 | 0 | max = Py_MIN(max, total); |
2012 | |
|
2013 | 0 | if (!IS_END_OF_FORMAT(*format) && (*format != '|') && (*format != '$')) { |
2014 | 0 | PyErr_Format(PyExc_SystemError, |
2015 | 0 | "more argument specifiers than keyword list entries " |
2016 | 0 | "(remaining format:'%s')", format); |
2017 | 0 | return -1; |
2018 | 0 | } |
2019 | | |
2020 | 0 | *pfname = fname; |
2021 | 0 | *pcustommsg = custommsg; |
2022 | 0 | *pmin = min; |
2023 | 0 | *pmax = max; |
2024 | 0 | return 0; |
2025 | 0 | } |
2026 | | |
2027 | | static PyObject * |
2028 | | new_kwtuple(const char * const *keywords, int total, int pos) |
2029 | 29 | { |
2030 | 29 | int nkw = total - pos; |
2031 | 29 | PyObject *kwtuple = PyTuple_New(nkw); |
2032 | 29 | if (kwtuple == NULL) { |
2033 | 0 | return NULL; |
2034 | 0 | } |
2035 | 29 | keywords += pos; |
2036 | 110 | for (int i = 0; i < nkw; i++) { |
2037 | 81 | PyObject *str = PyUnicode_FromString(keywords[i]); |
2038 | 81 | if (str == NULL) { |
2039 | 0 | Py_DECREF(kwtuple); |
2040 | 0 | return NULL; |
2041 | 0 | } |
2042 | 81 | PyInterpreterState *interp = _PyInterpreterState_GET(); |
2043 | 81 | _PyUnicode_InternImmortal(interp, &str); |
2044 | 81 | PyTuple_SET_ITEM(kwtuple, i, str); |
2045 | 81 | } |
2046 | 29 | return kwtuple; |
2047 | 29 | } |
2048 | | |
2049 | | static int |
2050 | | _parser_init(void *arg) |
2051 | 86 | { |
2052 | 86 | struct _PyArg_Parser *parser = (struct _PyArg_Parser *)arg; |
2053 | 86 | const char * const *keywords = parser->keywords; |
2054 | 86 | assert(keywords != NULL); |
2055 | 86 | assert(parser->pos == 0 && |
2056 | 86 | (parser->format == NULL || parser->fname == NULL) && |
2057 | 86 | parser->custom_msg == NULL && |
2058 | 86 | parser->min == 0 && |
2059 | 86 | parser->max == 0); |
2060 | | |
2061 | 86 | int len, pos; |
2062 | 86 | if (scan_keywords(keywords, &len, &pos) < 0) { |
2063 | 0 | return -1; |
2064 | 0 | } |
2065 | | |
2066 | 86 | const char *fname, *custommsg = NULL; |
2067 | 86 | int min = 0, max = 0; |
2068 | 86 | if (parser->format) { |
2069 | 0 | assert(parser->fname == NULL); |
2070 | 0 | if (parse_format(parser->format, len, pos, |
2071 | 0 | &fname, &custommsg, &min, &max) < 0) { |
2072 | 0 | return -1; |
2073 | 0 | } |
2074 | 0 | } |
2075 | 86 | else { |
2076 | 86 | assert(parser->fname != NULL); |
2077 | 86 | fname = parser->fname; |
2078 | 86 | } |
2079 | | |
2080 | 86 | int owned; |
2081 | 86 | PyObject *kwtuple = parser->kwtuple; |
2082 | 86 | if (kwtuple == NULL) { |
2083 | | /* We may temporarily switch to the main interpreter to avoid |
2084 | | * creating a tuple that could outlive its owning interpreter. */ |
2085 | 29 | PyThreadState *save_tstate = NULL; |
2086 | 29 | PyThreadState *temp_tstate = NULL; |
2087 | 29 | if (!_Py_IsMainInterpreter(PyInterpreterState_Get())) { |
2088 | 0 | temp_tstate = PyThreadState_New(_PyInterpreterState_Main()); |
2089 | 0 | if (temp_tstate == NULL) { |
2090 | 0 | return -1; |
2091 | 0 | } |
2092 | 0 | save_tstate = PyThreadState_Swap(temp_tstate); |
2093 | 0 | } |
2094 | 29 | kwtuple = new_kwtuple(keywords, len, pos); |
2095 | 29 | if (temp_tstate != NULL) { |
2096 | 0 | PyThreadState_Clear(temp_tstate); |
2097 | 0 | (void)PyThreadState_Swap(save_tstate); |
2098 | 0 | PyThreadState_Delete(temp_tstate); |
2099 | 0 | } |
2100 | 29 | if (kwtuple == NULL) { |
2101 | 0 | return -1; |
2102 | 0 | } |
2103 | 29 | owned = 1; |
2104 | 29 | } |
2105 | 57 | else { |
2106 | 57 | owned = 0; |
2107 | 57 | } |
2108 | | |
2109 | 86 | parser->pos = pos; |
2110 | 86 | parser->fname = fname; |
2111 | 86 | parser->custom_msg = custommsg; |
2112 | 86 | parser->min = min; |
2113 | 86 | parser->max = max; |
2114 | 86 | parser->kwtuple = kwtuple; |
2115 | 86 | parser->is_kwtuple_owned = owned; |
2116 | | |
2117 | 86 | assert(parser->next == NULL); |
2118 | 86 | parser->next = _Py_atomic_load_ptr(&_PyRuntime.getargs.static_parsers); |
2119 | 86 | do { |
2120 | | // compare-exchange updates parser->next on failure |
2121 | 86 | } while (!_Py_atomic_compare_exchange_ptr(&_PyRuntime.getargs.static_parsers, |
2122 | 86 | &parser->next, parser)); |
2123 | 86 | return 0; |
2124 | 86 | } |
2125 | | |
2126 | | static int |
2127 | | parser_init(struct _PyArg_Parser *parser) |
2128 | 675k | { |
2129 | 675k | return _PyOnceFlag_CallOnce(&parser->once, &_parser_init, parser); |
2130 | 675k | } |
2131 | | |
2132 | | static void |
2133 | | parser_clear(struct _PyArg_Parser *parser) |
2134 | 0 | { |
2135 | 0 | if (parser->is_kwtuple_owned) { |
2136 | 0 | Py_CLEAR(parser->kwtuple); |
2137 | 0 | } |
2138 | |
|
2139 | 0 | if (parser->format) { |
2140 | 0 | parser->fname = NULL; |
2141 | 0 | } |
2142 | 0 | else { |
2143 | 0 | assert(parser->fname != NULL); |
2144 | 0 | } |
2145 | 0 | parser->custom_msg = NULL; |
2146 | 0 | parser->pos = 0; |
2147 | 0 | parser->min = 0; |
2148 | 0 | parser->max = 0; |
2149 | 0 | parser->is_kwtuple_owned = 0; |
2150 | 0 | parser->once.v = 0; |
2151 | 0 | } |
2152 | | |
2153 | | static PyObject* |
2154 | | find_keyword(PyObject *kwnames, PyObject *const *kwstack, PyObject *key) |
2155 | 708k | { |
2156 | 708k | Py_ssize_t i, nkwargs; |
2157 | | |
2158 | 708k | nkwargs = PyTuple_GET_SIZE(kwnames); |
2159 | 786k | for (i = 0; i < nkwargs; i++) { |
2160 | 759k | PyObject *kwname = PyTuple_GET_ITEM(kwnames, i); |
2161 | | |
2162 | | /* kwname == key will normally find a match in since keyword keys |
2163 | | should be interned strings; if not retry below in a new loop. */ |
2164 | 759k | if (kwname == key) { |
2165 | 681k | return Py_NewRef(kwstack[i]); |
2166 | 681k | } |
2167 | 759k | } |
2168 | | |
2169 | 80.0k | for (i = 0; i < nkwargs; i++) { |
2170 | 53.3k | PyObject *kwname = PyTuple_GET_ITEM(kwnames, i); |
2171 | 53.3k | assert(PyUnicode_Check(kwname)); |
2172 | 53.3k | if (_PyUnicode_Equal(kwname, key)) { |
2173 | 0 | return Py_NewRef(kwstack[i]); |
2174 | 0 | } |
2175 | 53.3k | } |
2176 | 26.6k | return NULL; |
2177 | 26.6k | } |
2178 | | |
2179 | | static int |
2180 | | vgetargskeywordsfast_impl(PyObject *const *args, Py_ssize_t nargs, |
2181 | | PyObject *kwargs, PyObject *kwnames, |
2182 | | struct _PyArg_Parser *parser, |
2183 | | va_list *p_va, int flags) |
2184 | 0 | { |
2185 | 0 | PyObject *kwtuple; |
2186 | 0 | char msgbuf[512]; |
2187 | 0 | int levels[32]; |
2188 | 0 | const char *format; |
2189 | 0 | const char *msg; |
2190 | 0 | PyObject *keyword; |
2191 | 0 | Py_ssize_t i; |
2192 | 0 | int pos, len; |
2193 | 0 | Py_ssize_t nkwargs; |
2194 | 0 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
2195 | 0 | freelist_t freelist; |
2196 | 0 | PyObject *const *kwstack = NULL; |
2197 | |
|
2198 | 0 | freelist.entries = static_entries; |
2199 | 0 | freelist.first_available = 0; |
2200 | 0 | freelist.entries_malloced = 0; |
2201 | |
|
2202 | 0 | assert(kwargs == NULL || PyDict_Check(kwargs)); |
2203 | 0 | assert(kwargs == NULL || kwnames == NULL); |
2204 | 0 | assert(p_va != NULL); |
2205 | |
|
2206 | 0 | if (parser == NULL) { |
2207 | 0 | PyErr_BadInternalCall(); |
2208 | 0 | return 0; |
2209 | 0 | } |
2210 | | |
2211 | 0 | if (kwnames != NULL && !PyTuple_Check(kwnames)) { |
2212 | 0 | PyErr_BadInternalCall(); |
2213 | 0 | return 0; |
2214 | 0 | } |
2215 | | |
2216 | 0 | if (parser_init(parser) < 0) { |
2217 | 0 | return 0; |
2218 | 0 | } |
2219 | | |
2220 | 0 | kwtuple = parser->kwtuple; |
2221 | 0 | pos = parser->pos; |
2222 | 0 | len = pos + (int)PyTuple_GET_SIZE(kwtuple); |
2223 | |
|
2224 | 0 | if (len > STATIC_FREELIST_ENTRIES) { |
2225 | 0 | freelist.entries = PyMem_NEW(freelistentry_t, len); |
2226 | 0 | if (freelist.entries == NULL) { |
2227 | 0 | PyErr_NoMemory(); |
2228 | 0 | return 0; |
2229 | 0 | } |
2230 | 0 | freelist.entries_malloced = 1; |
2231 | 0 | } |
2232 | | |
2233 | 0 | if (kwargs != NULL) { |
2234 | 0 | nkwargs = PyDict_GET_SIZE(kwargs); |
2235 | 0 | } |
2236 | 0 | else if (kwnames != NULL) { |
2237 | 0 | nkwargs = PyTuple_GET_SIZE(kwnames); |
2238 | 0 | kwstack = args + nargs; |
2239 | 0 | } |
2240 | 0 | else { |
2241 | 0 | nkwargs = 0; |
2242 | 0 | } |
2243 | 0 | if (nargs + nkwargs > len) { |
2244 | | /* Adding "keyword" (when nargs == 0) prevents producing wrong error |
2245 | | messages in some special cases (see bpo-31229). */ |
2246 | 0 | PyErr_Format(PyExc_TypeError, |
2247 | 0 | "%.200s%s takes at most %d %sargument%s (%zd given)", |
2248 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2249 | 0 | (parser->fname == NULL) ? "" : "()", |
2250 | 0 | len, |
2251 | 0 | (nargs == 0) ? "keyword " : "", |
2252 | 0 | (len == 1) ? "" : "s", |
2253 | 0 | nargs + nkwargs); |
2254 | 0 | return cleanreturn(0, &freelist); |
2255 | 0 | } |
2256 | 0 | if (parser->max < nargs) { |
2257 | 0 | if (parser->max == 0) { |
2258 | 0 | PyErr_Format(PyExc_TypeError, |
2259 | 0 | "%.200s%s takes no positional arguments", |
2260 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2261 | 0 | (parser->fname == NULL) ? "" : "()"); |
2262 | 0 | } |
2263 | 0 | else { |
2264 | 0 | PyErr_Format(PyExc_TypeError, |
2265 | 0 | "%.200s%s takes %s %d positional argument%s (%zd given)", |
2266 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2267 | 0 | (parser->fname == NULL) ? "" : "()", |
2268 | 0 | (parser->min < parser->max) ? "at most" : "exactly", |
2269 | 0 | parser->max, |
2270 | 0 | parser->max == 1 ? "" : "s", |
2271 | 0 | nargs); |
2272 | 0 | } |
2273 | 0 | return cleanreturn(0, &freelist); |
2274 | 0 | } |
2275 | | |
2276 | 0 | format = parser->format; |
2277 | 0 | assert(format != NULL || len == 0); |
2278 | | /* convert tuple args and keyword args in same loop, using kwtuple to drive process */ |
2279 | 0 | for (i = 0; i < len; i++) { |
2280 | 0 | if (*format == '|') { |
2281 | 0 | format++; |
2282 | 0 | } |
2283 | 0 | if (*format == '$') { |
2284 | 0 | format++; |
2285 | 0 | } |
2286 | 0 | assert(!IS_END_OF_FORMAT(*format)); |
2287 | |
|
2288 | 0 | PyObject *current_arg; |
2289 | 0 | if (i < nargs) { |
2290 | 0 | current_arg = Py_NewRef(args[i]); |
2291 | 0 | } |
2292 | 0 | else if (nkwargs && i >= pos) { |
2293 | 0 | keyword = PyTuple_GET_ITEM(kwtuple, i - pos); |
2294 | 0 | if (kwargs != NULL) { |
2295 | 0 | if (PyDict_GetItemRef(kwargs, keyword, ¤t_arg) < 0) { |
2296 | 0 | return cleanreturn(0, &freelist); |
2297 | 0 | } |
2298 | 0 | } |
2299 | 0 | else { |
2300 | 0 | current_arg = find_keyword(kwnames, kwstack, keyword); |
2301 | 0 | } |
2302 | 0 | if (current_arg) { |
2303 | 0 | --nkwargs; |
2304 | 0 | } |
2305 | 0 | } |
2306 | 0 | else { |
2307 | 0 | current_arg = NULL; |
2308 | 0 | } |
2309 | | |
2310 | 0 | if (current_arg) { |
2311 | 0 | msg = convertitem(current_arg, &format, p_va, flags, |
2312 | 0 | levels, msgbuf, sizeof(msgbuf), &freelist); |
2313 | 0 | Py_DECREF(current_arg); |
2314 | 0 | if (msg) { |
2315 | 0 | seterror(i+1, msg, levels, parser->fname, parser->custom_msg); |
2316 | 0 | return cleanreturn(0, &freelist); |
2317 | 0 | } |
2318 | 0 | continue; |
2319 | 0 | } |
2320 | | |
2321 | 0 | if (i < parser->min) { |
2322 | | /* Less arguments than required */ |
2323 | 0 | if (i < pos) { |
2324 | 0 | Py_ssize_t min = Py_MIN(pos, parser->min); |
2325 | 0 | PyErr_Format(PyExc_TypeError, |
2326 | 0 | "%.200s%s takes %s %d positional argument%s" |
2327 | 0 | " (%zd given)", |
2328 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2329 | 0 | (parser->fname == NULL) ? "" : "()", |
2330 | 0 | min < parser->max ? "at least" : "exactly", |
2331 | 0 | min, |
2332 | 0 | min == 1 ? "" : "s", |
2333 | 0 | nargs); |
2334 | 0 | } |
2335 | 0 | else { |
2336 | 0 | keyword = PyTuple_GET_ITEM(kwtuple, i - pos); |
2337 | 0 | PyErr_Format(PyExc_TypeError, "%.200s%s missing required " |
2338 | 0 | "argument '%U' (pos %d)", |
2339 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2340 | 0 | (parser->fname == NULL) ? "" : "()", |
2341 | 0 | keyword, i+1); |
2342 | 0 | } |
2343 | 0 | return cleanreturn(0, &freelist); |
2344 | 0 | } |
2345 | | /* current code reports success when all required args |
2346 | | * fulfilled and no keyword args left, with no further |
2347 | | * validation. XXX Maybe skip this in debug build ? |
2348 | | */ |
2349 | 0 | if (!nkwargs) { |
2350 | 0 | return cleanreturn(1, &freelist); |
2351 | 0 | } |
2352 | | |
2353 | | /* We are into optional args, skip through to any remaining |
2354 | | * keyword args */ |
2355 | 0 | msg = skipitem(&format, p_va, flags); |
2356 | 0 | assert(msg == NULL); |
2357 | 0 | } |
2358 | | |
2359 | 0 | assert(IS_END_OF_FORMAT(*format) || (*format == '|') || (*format == '$')); |
2360 | |
|
2361 | 0 | if (nkwargs > 0) { |
2362 | | /* make sure there are no arguments given by name and position */ |
2363 | 0 | for (i = pos; i < nargs; i++) { |
2364 | 0 | PyObject *current_arg; |
2365 | 0 | keyword = PyTuple_GET_ITEM(kwtuple, i - pos); |
2366 | 0 | if (kwargs != NULL) { |
2367 | 0 | if (PyDict_GetItemRef(kwargs, keyword, ¤t_arg) < 0) { |
2368 | 0 | return cleanreturn(0, &freelist); |
2369 | 0 | } |
2370 | 0 | } |
2371 | 0 | else { |
2372 | 0 | current_arg = find_keyword(kwnames, kwstack, keyword); |
2373 | 0 | } |
2374 | 0 | if (current_arg) { |
2375 | 0 | Py_DECREF(current_arg); |
2376 | | /* arg present in tuple and in dict */ |
2377 | 0 | PyErr_Format(PyExc_TypeError, |
2378 | 0 | "argument for %.200s%s given by name ('%U') " |
2379 | 0 | "and position (%d)", |
2380 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2381 | 0 | (parser->fname == NULL) ? "" : "()", |
2382 | 0 | keyword, i+1); |
2383 | 0 | return cleanreturn(0, &freelist); |
2384 | 0 | } |
2385 | 0 | } |
2386 | | |
2387 | 0 | error_unexpected_keyword_arg(kwargs, kwnames, kwtuple, parser->fname); |
2388 | 0 | return cleanreturn(0, &freelist); |
2389 | 0 | } |
2390 | | |
2391 | 0 | return cleanreturn(1, &freelist); |
2392 | 0 | } |
2393 | | |
2394 | | static int |
2395 | | vgetargskeywordsfast(PyObject *args, PyObject *keywords, |
2396 | | struct _PyArg_Parser *parser, va_list *p_va, int flags) |
2397 | 0 | { |
2398 | 0 | PyObject **stack; |
2399 | 0 | Py_ssize_t nargs; |
2400 | |
|
2401 | 0 | if (args == NULL |
2402 | 0 | || !PyTuple_Check(args) |
2403 | 0 | || (keywords != NULL && !PyDict_Check(keywords))) |
2404 | 0 | { |
2405 | 0 | PyErr_BadInternalCall(); |
2406 | 0 | return 0; |
2407 | 0 | } |
2408 | | |
2409 | 0 | stack = _PyTuple_ITEMS(args); |
2410 | 0 | nargs = PyTuple_GET_SIZE(args); |
2411 | 0 | return vgetargskeywordsfast_impl(stack, nargs, keywords, NULL, |
2412 | 0 | parser, p_va, flags); |
2413 | 0 | } |
2414 | | |
2415 | | |
2416 | | #undef _PyArg_UnpackKeywords |
2417 | | |
2418 | | PyObject * const * |
2419 | | _PyArg_UnpackKeywords(PyObject *const *args, Py_ssize_t nargs, |
2420 | | PyObject *kwargs, PyObject *kwnames, |
2421 | | struct _PyArg_Parser *parser, |
2422 | | int minpos, int maxpos, int minkw, int varpos, |
2423 | | PyObject **buf) |
2424 | 675k | { |
2425 | 675k | PyObject *kwtuple; |
2426 | 675k | PyObject *keyword; |
2427 | 675k | int i, posonly, minposonly, maxargs; |
2428 | 675k | int reqlimit = minkw ? maxpos + minkw : minpos; |
2429 | 675k | Py_ssize_t nkwargs; |
2430 | 675k | PyObject * const *kwstack = NULL; |
2431 | | |
2432 | 675k | assert(kwargs == NULL || PyDict_Check(kwargs)); |
2433 | 675k | assert(kwargs == NULL || kwnames == NULL); |
2434 | | |
2435 | 675k | if (parser == NULL) { |
2436 | 0 | PyErr_BadInternalCall(); |
2437 | 0 | return NULL; |
2438 | 0 | } |
2439 | | |
2440 | 675k | if (kwnames != NULL && !PyTuple_Check(kwnames)) { |
2441 | 0 | PyErr_BadInternalCall(); |
2442 | 0 | return NULL; |
2443 | 0 | } |
2444 | | |
2445 | 675k | if (args == NULL && nargs == 0) { |
2446 | 2.13k | args = buf; |
2447 | 2.13k | } |
2448 | | |
2449 | 675k | if (parser_init(parser) < 0) { |
2450 | 0 | return NULL; |
2451 | 0 | } |
2452 | | |
2453 | 675k | kwtuple = parser->kwtuple; |
2454 | 675k | posonly = parser->pos; |
2455 | 675k | minposonly = Py_MIN(posonly, minpos); |
2456 | 675k | maxargs = posonly + (int)PyTuple_GET_SIZE(kwtuple); |
2457 | | |
2458 | 675k | if (kwargs != NULL) { |
2459 | 16.2k | nkwargs = PyDict_GET_SIZE(kwargs); |
2460 | 16.2k | } |
2461 | 658k | else if (kwnames != NULL) { |
2462 | 656k | nkwargs = PyTuple_GET_SIZE(kwnames); |
2463 | 656k | kwstack = args + nargs; |
2464 | 656k | } |
2465 | 2.13k | else { |
2466 | 2.13k | nkwargs = 0; |
2467 | 2.13k | } |
2468 | 675k | if (nkwargs == 0 && minkw == 0 && minpos <= nargs && (varpos || nargs <= maxpos)) { |
2469 | | /* Fast path. */ |
2470 | 2.13k | return args; |
2471 | 2.13k | } |
2472 | 673k | if (!varpos && nargs + nkwargs > maxargs) { |
2473 | | /* Adding "keyword" (when nargs == 0) prevents producing wrong error |
2474 | | messages in some special cases (see bpo-31229). */ |
2475 | 0 | PyErr_Format(PyExc_TypeError, |
2476 | 0 | "%.200s%s takes at most %d %sargument%s (%zd given)", |
2477 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2478 | 0 | (parser->fname == NULL) ? "" : "()", |
2479 | 0 | maxargs, |
2480 | 0 | (nargs == 0) ? "keyword " : "", |
2481 | 0 | (maxargs == 1) ? "" : "s", |
2482 | 0 | nargs + nkwargs); |
2483 | 0 | return NULL; |
2484 | 0 | } |
2485 | 673k | if (!varpos && nargs > maxpos) { |
2486 | 0 | if (maxpos == 0) { |
2487 | 0 | PyErr_Format(PyExc_TypeError, |
2488 | 0 | "%.200s%s takes no positional arguments", |
2489 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2490 | 0 | (parser->fname == NULL) ? "" : "()"); |
2491 | 0 | } |
2492 | 0 | else { |
2493 | 0 | PyErr_Format(PyExc_TypeError, |
2494 | 0 | "%.200s%s takes %s %d positional argument%s (%zd given)", |
2495 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2496 | 0 | (parser->fname == NULL) ? "" : "()", |
2497 | 0 | (minpos < maxpos) ? "at most" : "exactly", |
2498 | 0 | maxpos, |
2499 | 0 | (maxpos == 1) ? "" : "s", |
2500 | 0 | nargs); |
2501 | 0 | } |
2502 | 0 | return NULL; |
2503 | 0 | } |
2504 | 673k | if (nargs < minposonly) { |
2505 | 0 | PyErr_Format(PyExc_TypeError, |
2506 | 0 | "%.200s%s takes %s %d positional argument%s" |
2507 | 0 | " (%zd given)", |
2508 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2509 | 0 | (parser->fname == NULL) ? "" : "()", |
2510 | 0 | (varpos || minposonly < maxpos) ? "at least" : "exactly", |
2511 | 0 | minposonly, |
2512 | 0 | minposonly == 1 ? "" : "s", |
2513 | 0 | nargs); |
2514 | 0 | return NULL; |
2515 | 0 | } |
2516 | | |
2517 | 673k | if (varpos) { |
2518 | 0 | nargs = Py_MIN(maxpos, nargs); |
2519 | 0 | } |
2520 | | /* copy tuple args */ |
2521 | 829k | for (i = 0; i < nargs; i++) { |
2522 | 156k | buf[i] = args[i]; |
2523 | 156k | } |
2524 | | |
2525 | | /* copy keyword args using kwtuple to drive process */ |
2526 | 1.41M | for (i = Py_MAX((int)nargs, posonly); i < maxargs; i++) { |
2527 | 1.30M | PyObject *current_arg; |
2528 | 1.30M | if (nkwargs) { |
2529 | 740k | keyword = PyTuple_GET_ITEM(kwtuple, i - posonly); |
2530 | 740k | if (kwargs != NULL) { |
2531 | 32.5k | if (PyDict_GetItemRef(kwargs, keyword, ¤t_arg) < 0) { |
2532 | 0 | return NULL; |
2533 | 0 | } |
2534 | 32.5k | } |
2535 | 708k | else { |
2536 | 708k | current_arg = find_keyword(kwnames, kwstack, keyword); |
2537 | 708k | } |
2538 | 740k | } |
2539 | 569k | else if (i >= reqlimit) { |
2540 | 569k | break; |
2541 | 569k | } |
2542 | 0 | else { |
2543 | 0 | current_arg = NULL; |
2544 | 0 | } |
2545 | | |
2546 | 740k | buf[i] = current_arg; |
2547 | | |
2548 | 740k | if (current_arg) { |
2549 | 697k | Py_DECREF(current_arg); |
2550 | 697k | --nkwargs; |
2551 | 697k | } |
2552 | 42.9k | else if (i < minpos || (maxpos <= i && i < reqlimit)) { |
2553 | | /* Less arguments than required */ |
2554 | 0 | keyword = PyTuple_GET_ITEM(kwtuple, i - posonly); |
2555 | 0 | PyErr_Format(PyExc_TypeError, "%.200s%s missing required " |
2556 | 0 | "argument '%U' (pos %d)", |
2557 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2558 | 0 | (parser->fname == NULL) ? "" : "()", |
2559 | 0 | keyword, i+1); |
2560 | 0 | return NULL; |
2561 | 0 | } |
2562 | 740k | } |
2563 | | |
2564 | 673k | if (nkwargs > 0) { |
2565 | | /* make sure there are no arguments given by name and position */ |
2566 | 0 | for (i = posonly; i < nargs; i++) { |
2567 | 0 | PyObject *current_arg; |
2568 | 0 | keyword = PyTuple_GET_ITEM(kwtuple, i - posonly); |
2569 | 0 | if (kwargs != NULL) { |
2570 | 0 | if (PyDict_GetItemRef(kwargs, keyword, ¤t_arg) < 0) { |
2571 | 0 | return NULL; |
2572 | 0 | } |
2573 | 0 | } |
2574 | 0 | else { |
2575 | 0 | current_arg = find_keyword(kwnames, kwstack, keyword); |
2576 | 0 | } |
2577 | 0 | if (current_arg) { |
2578 | 0 | Py_DECREF(current_arg); |
2579 | | /* arg present in tuple and in dict */ |
2580 | 0 | PyErr_Format(PyExc_TypeError, |
2581 | 0 | "argument for %.200s%s given by name ('%U') " |
2582 | 0 | "and position (%d)", |
2583 | 0 | (parser->fname == NULL) ? "function" : parser->fname, |
2584 | 0 | (parser->fname == NULL) ? "" : "()", |
2585 | 0 | keyword, i+1); |
2586 | 0 | return NULL; |
2587 | 0 | } |
2588 | 0 | } |
2589 | | |
2590 | 0 | error_unexpected_keyword_arg(kwargs, kwnames, kwtuple, parser->fname); |
2591 | 0 | return NULL; |
2592 | 0 | } |
2593 | | |
2594 | 673k | return buf; |
2595 | 673k | } |
2596 | | |
2597 | | static const char * |
2598 | | skipitem(const char **p_format, va_list *p_va, int flags) |
2599 | 2.98k | { |
2600 | 2.98k | const char *format = *p_format; |
2601 | 2.98k | char c = *format++; |
2602 | | |
2603 | 2.98k | switch (c) { |
2604 | | |
2605 | | /* |
2606 | | * codes that take a single data pointer as an argument |
2607 | | * (the type of the pointer is irrelevant) |
2608 | | */ |
2609 | | |
2610 | 0 | case 'b': /* byte -- very short int */ |
2611 | 0 | case 'B': /* byte as bitfield */ |
2612 | 0 | case 'h': /* short int */ |
2613 | 0 | case 'H': /* short int as bitfield */ |
2614 | 0 | case 'i': /* int */ |
2615 | 0 | case 'I': /* int sized bitfield */ |
2616 | 0 | case 'l': /* long int */ |
2617 | 0 | case 'k': /* long int sized bitfield */ |
2618 | 0 | case 'L': /* long long */ |
2619 | 0 | case 'K': /* long long sized bitfield */ |
2620 | 0 | case 'n': /* Py_ssize_t */ |
2621 | 0 | case 'f': /* float */ |
2622 | 0 | case 'd': /* double */ |
2623 | 0 | case 'D': /* complex double */ |
2624 | 0 | case 'c': /* char */ |
2625 | 0 | case 'C': /* unicode char */ |
2626 | 0 | case 'p': /* boolean predicate */ |
2627 | 0 | case 'S': /* string object */ |
2628 | 0 | case 'Y': /* string object */ |
2629 | 0 | case 'U': /* unicode string object */ |
2630 | 0 | { |
2631 | 0 | if (p_va != NULL) { |
2632 | 0 | (void) va_arg(*p_va, void *); |
2633 | 0 | } |
2634 | 0 | break; |
2635 | 0 | } |
2636 | | |
2637 | | /* string codes */ |
2638 | | |
2639 | 0 | case 'e': /* string with encoding */ |
2640 | 0 | { |
2641 | 0 | if (p_va != NULL) { |
2642 | 0 | (void) va_arg(*p_va, const char *); |
2643 | 0 | } |
2644 | 0 | if (!(*format == 's' || *format == 't')) |
2645 | | /* after 'e', only 's' and 't' is allowed */ |
2646 | 0 | goto err; |
2647 | 0 | format++; |
2648 | 0 | } |
2649 | 0 | _Py_FALLTHROUGH; |
2650 | |
|
2651 | 0 | case 's': /* string */ |
2652 | 0 | case 'z': /* string or None */ |
2653 | 0 | case 'y': /* bytes */ |
2654 | 0 | case 'w': /* buffer, read-write */ |
2655 | 0 | { |
2656 | 0 | if (p_va != NULL) { |
2657 | 0 | (void) va_arg(*p_va, char **); |
2658 | 0 | } |
2659 | 0 | if (c == 'w' && *format != '*') |
2660 | 0 | { |
2661 | | /* after 'w', only '*' is allowed */ |
2662 | 0 | goto err; |
2663 | 0 | } |
2664 | 0 | if (*format == '#') { |
2665 | 0 | if (p_va != NULL) { |
2666 | 0 | (void) va_arg(*p_va, Py_ssize_t *); |
2667 | 0 | } |
2668 | 0 | format++; |
2669 | 0 | } else if ((c == 's' || c == 'z' || c == 'y' || c == 'w') |
2670 | 0 | && *format == '*') |
2671 | 0 | { |
2672 | 0 | format++; |
2673 | 0 | } |
2674 | 0 | break; |
2675 | 0 | } |
2676 | | |
2677 | 2.98k | case 'O': /* object */ |
2678 | 2.98k | { |
2679 | 2.98k | if (*format == '!') { |
2680 | 0 | format++; |
2681 | 0 | if (p_va != NULL) { |
2682 | 0 | (void) va_arg(*p_va, PyTypeObject*); |
2683 | 0 | (void) va_arg(*p_va, PyObject **); |
2684 | 0 | } |
2685 | 0 | } |
2686 | 2.98k | else if (*format == '&') { |
2687 | 0 | typedef int (*converter)(PyObject *, void *); |
2688 | 0 | if (p_va != NULL) { |
2689 | 0 | (void) va_arg(*p_va, converter); |
2690 | 0 | (void) va_arg(*p_va, void *); |
2691 | 0 | } |
2692 | 0 | format++; |
2693 | 0 | } |
2694 | 2.98k | else { |
2695 | 2.98k | if (p_va != NULL) { |
2696 | 2.98k | (void) va_arg(*p_va, PyObject **); |
2697 | 2.98k | } |
2698 | 2.98k | } |
2699 | 2.98k | break; |
2700 | 0 | } |
2701 | | |
2702 | 0 | case '(': /* bypass tuple, not handled at all previously */ |
2703 | 0 | { |
2704 | 0 | const char *msg; |
2705 | 0 | for (;;) { |
2706 | 0 | if (*format==')') |
2707 | 0 | break; |
2708 | 0 | if (IS_END_OF_FORMAT(*format)) |
2709 | 0 | return "Unmatched left paren in format " |
2710 | 0 | "string"; |
2711 | 0 | msg = skipitem(&format, p_va, flags); |
2712 | 0 | if (msg) |
2713 | 0 | return msg; |
2714 | 0 | } |
2715 | 0 | format++; |
2716 | 0 | break; |
2717 | 0 | } |
2718 | | |
2719 | 0 | case ')': |
2720 | 0 | return "Unmatched right paren in format string"; |
2721 | | |
2722 | 0 | default: |
2723 | 0 | err: |
2724 | 0 | return "impossible<bad format char>"; |
2725 | | |
2726 | 2.98k | } |
2727 | | |
2728 | 2.98k | *p_format = format; |
2729 | 2.98k | return NULL; |
2730 | 2.98k | } |
2731 | | |
2732 | | |
2733 | | #undef _PyArg_CheckPositional |
2734 | | |
2735 | | int |
2736 | | _PyArg_CheckPositional(const char *name, Py_ssize_t nargs, |
2737 | | Py_ssize_t min, Py_ssize_t max) |
2738 | 640k | { |
2739 | 640k | assert(min >= 0); |
2740 | 640k | assert(min <= max); |
2741 | | |
2742 | 640k | if (nargs < min) { |
2743 | 0 | if (name != NULL) |
2744 | 0 | PyErr_Format( |
2745 | 0 | PyExc_TypeError, |
2746 | 0 | "%.200s expected %s%zd argument%s, got %zd", |
2747 | 0 | name, (min == max ? "" : "at least "), min, min == 1 ? "" : "s", nargs); |
2748 | 0 | else |
2749 | 0 | PyErr_Format( |
2750 | 0 | PyExc_TypeError, |
2751 | 0 | "unpacked tuple should have %s%zd element%s," |
2752 | 0 | " but has %zd", |
2753 | 0 | (min == max ? "" : "at least "), min, min == 1 ? "" : "s", nargs); |
2754 | 0 | return 0; |
2755 | 0 | } |
2756 | | |
2757 | 640k | if (nargs == 0) { |
2758 | 306 | return 1; |
2759 | 306 | } |
2760 | | |
2761 | 640k | if (nargs > max) { |
2762 | 0 | if (name != NULL) |
2763 | 0 | PyErr_Format( |
2764 | 0 | PyExc_TypeError, |
2765 | 0 | "%.200s expected %s%zd argument%s, got %zd", |
2766 | 0 | name, (min == max ? "" : "at most "), max, max == 1 ? "" : "s", nargs); |
2767 | 0 | else |
2768 | 0 | PyErr_Format( |
2769 | 0 | PyExc_TypeError, |
2770 | 0 | "unpacked tuple should have %s%zd element%s," |
2771 | 0 | " but has %zd", |
2772 | 0 | (min == max ? "" : "at most "), max, max == 1 ? "" : "s", nargs); |
2773 | 0 | return 0; |
2774 | 0 | } |
2775 | | |
2776 | 640k | return 1; |
2777 | 640k | } |
2778 | | |
2779 | | static int |
2780 | | unpack_stack(PyObject *const *args, Py_ssize_t nargs, const char *name, |
2781 | | Py_ssize_t min, Py_ssize_t max, va_list vargs) |
2782 | 640k | { |
2783 | 640k | Py_ssize_t i; |
2784 | 640k | PyObject **o; |
2785 | | |
2786 | 640k | if (!_PyArg_CheckPositional(name, nargs, min, max)) { |
2787 | 0 | return 0; |
2788 | 0 | } |
2789 | | |
2790 | 1.32M | for (i = 0; i < nargs; i++) { |
2791 | 681k | o = va_arg(vargs, PyObject **); |
2792 | 681k | *o = args[i]; |
2793 | 681k | } |
2794 | 640k | return 1; |
2795 | 640k | } |
2796 | | |
2797 | | int |
2798 | | PyArg_UnpackTuple(PyObject *args, const char *name, Py_ssize_t min, Py_ssize_t max, ...) |
2799 | 325k | { |
2800 | 325k | PyObject **stack; |
2801 | 325k | Py_ssize_t nargs; |
2802 | 325k | int retval; |
2803 | 325k | va_list vargs; |
2804 | | |
2805 | 325k | if (!PyTuple_Check(args)) { |
2806 | 0 | PyErr_SetString(PyExc_SystemError, |
2807 | 0 | "PyArg_UnpackTuple() argument list is not a tuple"); |
2808 | 0 | return 0; |
2809 | 0 | } |
2810 | 325k | stack = _PyTuple_ITEMS(args); |
2811 | 325k | nargs = PyTuple_GET_SIZE(args); |
2812 | | |
2813 | 325k | va_start(vargs, max); |
2814 | 325k | retval = unpack_stack(stack, nargs, name, min, max, vargs); |
2815 | 325k | va_end(vargs); |
2816 | 325k | return retval; |
2817 | 325k | } |
2818 | | |
2819 | | int |
2820 | | _PyArg_UnpackStack(PyObject *const *args, Py_ssize_t nargs, const char *name, |
2821 | | Py_ssize_t min, Py_ssize_t max, ...) |
2822 | 315k | { |
2823 | 315k | int retval; |
2824 | 315k | va_list vargs; |
2825 | | |
2826 | 315k | va_start(vargs, max); |
2827 | 315k | retval = unpack_stack(args, nargs, name, min, max, vargs); |
2828 | 315k | va_end(vargs); |
2829 | 315k | return retval; |
2830 | 315k | } |
2831 | | |
2832 | | |
2833 | | #undef _PyArg_NoKeywords |
2834 | | #undef _PyArg_NoKwnames |
2835 | | #undef _PyArg_NoPositional |
2836 | | |
2837 | | /* For type constructors that don't take keyword args |
2838 | | * |
2839 | | * Sets a TypeError and returns 0 if the args/kwargs is |
2840 | | * not empty, returns 1 otherwise |
2841 | | */ |
2842 | | int |
2843 | | _PyArg_NoKeywords(const char *funcname, PyObject *kwargs) |
2844 | 12.4M | { |
2845 | 12.4M | if (kwargs == NULL) { |
2846 | 0 | return 1; |
2847 | 0 | } |
2848 | 12.4M | if (!PyDict_CheckExact(kwargs)) { |
2849 | 0 | PyErr_BadInternalCall(); |
2850 | 0 | return 0; |
2851 | 0 | } |
2852 | 12.4M | if (PyDict_GET_SIZE(kwargs) == 0) { |
2853 | 12.4M | return 1; |
2854 | 12.4M | } |
2855 | | |
2856 | 0 | PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments", |
2857 | 0 | funcname); |
2858 | 0 | return 0; |
2859 | 12.4M | } |
2860 | | |
2861 | | int |
2862 | | _PyArg_NoPositional(const char *funcname, PyObject *args) |
2863 | 2.66k | { |
2864 | 2.66k | if (args == NULL) |
2865 | 0 | return 1; |
2866 | 2.66k | if (!PyTuple_CheckExact(args)) { |
2867 | 0 | PyErr_BadInternalCall(); |
2868 | 0 | return 0; |
2869 | 0 | } |
2870 | 2.66k | if (PyTuple_GET_SIZE(args) == 0) |
2871 | 2.66k | return 1; |
2872 | | |
2873 | 0 | PyErr_Format(PyExc_TypeError, "%.200s() takes no positional arguments", |
2874 | 0 | funcname); |
2875 | 0 | return 0; |
2876 | 2.66k | } |
2877 | | |
2878 | | int |
2879 | | _PyArg_NoKwnames(const char *funcname, PyObject *kwnames) |
2880 | 0 | { |
2881 | 0 | if (kwnames == NULL) { |
2882 | 0 | return 1; |
2883 | 0 | } |
2884 | | |
2885 | 0 | assert(PyTuple_CheckExact(kwnames)); |
2886 | |
|
2887 | 0 | if (PyTuple_GET_SIZE(kwnames) == 0) { |
2888 | 0 | return 1; |
2889 | 0 | } |
2890 | | |
2891 | 0 | PyErr_Format(PyExc_TypeError, "%s() takes no keyword arguments", funcname); |
2892 | 0 | return 0; |
2893 | 0 | } |
2894 | | |
2895 | | void |
2896 | | _PyArg_Fini(void) |
2897 | 0 | { |
2898 | 0 | struct _PyArg_Parser *tmp, *s = _PyRuntime.getargs.static_parsers; |
2899 | 0 | while (s) { |
2900 | 0 | tmp = s->next; |
2901 | 0 | s->next = NULL; |
2902 | 0 | parser_clear(s); |
2903 | 0 | s = tmp; |
2904 | 0 | } |
2905 | 0 | _PyRuntime.getargs.static_parsers = NULL; |
2906 | 0 | } |